docs: networking: convert arcnet-hardware.txt to ReST
- add SPDX header;
- add document title markup;
- add notes markups;
- mark tables as such;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines;
- add to networking/index.rst.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/Documentation/networking/arcnet-hardware.rst b/Documentation/networking/arcnet-hardware.rst
new file mode 100644
index 0000000..b5a1a02
--- /dev/null
+++ b/Documentation/networking/arcnet-hardware.rst
@@ -0,0 +1,3234 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===============
+ARCnet Hardware
+===============
+
+.. note::
+
+ 1) This file is a supplement to arcnet.txt. Please read that for general
+ driver configuration help.
+ 2) This file is no longer Linux-specific. It should probably be moved out
+ of the kernel sources. Ideas?
+
+Because so many people (myself included) seem to have obtained ARCnet cards
+without manuals, this file contains a quick introduction to ARCnet hardware,
+some cabling tips, and a listing of all jumper settings I can find. Please
+e-mail apenwarr@worldvisions.ca with any settings for your particular card,
+or any other information you have!
+
+
+Introduction to ARCnet
+======================
+
+ARCnet is a network type which works in a way similar to popular Ethernet
+networks but which is also different in some very important ways.
+
+First of all, you can get ARCnet cards in at least two speeds: 2.5 Mbps
+(slower than Ethernet) and 100 Mbps (faster than normal Ethernet). In fact,
+there are others as well, but these are less common. The different hardware
+types, as far as I'm aware, are not compatible and so you cannot wire a
+100 Mbps card to a 2.5 Mbps card, and so on. From what I hear, my driver does
+work with 100 Mbps cards, but I haven't been able to verify this myself,
+since I only have the 2.5 Mbps variety. It is probably not going to saturate
+your 100 Mbps card. Stop complaining. :)
+
+You also cannot connect an ARCnet card to any kind of Ethernet card and
+expect it to work.
+
+There are two "types" of ARCnet - STAR topology and BUS topology. This
+refers to how the cards are meant to be wired together. According to most
+available documentation, you can only connect STAR cards to STAR cards and
+BUS cards to BUS cards. That makes sense, right? Well, it's not quite
+true; see below under "Cabling."
+
+Once you get past these little stumbling blocks, ARCnet is actually quite a
+well-designed standard. It uses something called "modified token passing"
+which makes it completely incompatible with so-called "Token Ring" cards,
+but which makes transfers much more reliable than Ethernet does. In fact,
+ARCnet will guarantee that a packet arrives safely at the destination, and
+even if it can't possibly be delivered properly (ie. because of a cable
+break, or because the destination computer does not exist) it will at least
+tell the sender about it.
+
+Because of the carefully defined action of the "token", it will always make
+a pass around the "ring" within a maximum length of time. This makes it
+useful for realtime networks.
+
+In addition, all known ARCnet cards have an (almost) identical programming
+interface. This means that with one ARCnet driver you can support any
+card, whereas with Ethernet each manufacturer uses what is sometimes a
+completely different programming interface, leading to a lot of different,
+sometimes very similar, Ethernet drivers. Of course, always using the same
+programming interface also means that when high-performance hardware
+facilities like PCI bus mastering DMA appear, it's hard to take advantage of
+them. Let's not go into that.
+
+One thing that makes ARCnet cards difficult to program for, however, is the
+limit on their packet sizes; standard ARCnet can only send packets that are
+up to 508 bytes in length. This is smaller than the Internet "bare minimum"
+of 576 bytes, let alone the Ethernet MTU of 1500. To compensate, an extra
+level of encapsulation is defined by RFC1201, which I call "packet
+splitting," that allows "virtual packets" to grow as large as 64K each,
+although they are generally kept down to the Ethernet-style 1500 bytes.
+
+For more information on the advantages and disadvantages (mostly the
+advantages) of ARCnet networks, you might try the "ARCnet Trade Association"
+WWW page:
+
+ http://www.arcnet.com
+
+
+Cabling ARCnet Networks
+=======================
+
+This section was rewritten by
+
+ Vojtech Pavlik <vojtech@suse.cz>
+
+using information from several people, including:
+
+ - Avery Pennraun <apenwarr@worldvisions.ca>
+ - Stephen A. Wood <saw@hallc1.cebaf.gov>
+ - John Paul Morrison <jmorriso@bogomips.ee.ubc.ca>
+ - Joachim Koenig <jojo@repas.de>
+
+and Avery touched it up a bit, at Vojtech's request.
+
+ARCnet (the classic 2.5 Mbps version) can be connected by two different
+types of cabling: coax and twisted pair. The other ARCnet-type networks
+(100 Mbps TCNS and 320 kbps - 32 Mbps ARCnet Plus) use different types of
+cabling (Type1, Fiber, C1, C4, C5).
+
+For a coax network, you "should" use 93 Ohm RG-62 cable. But other cables
+also work fine, because ARCnet is a very stable network. I personally use 75
+Ohm TV antenna cable.
+
+Cards for coax cabling are shipped in two different variants: for BUS and
+STAR network topologies. They are mostly the same. The only difference
+lies in the hybrid chip installed. BUS cards use high impedance output,
+while STAR use low impedance. Low impedance card (STAR) is electrically
+equal to a high impedance one with a terminator installed.
+
+Usually, the ARCnet networks are built up from STAR cards and hubs. There
+are two types of hubs - active and passive. Passive hubs are small boxes
+with four BNC connectors containing four 47 Ohm resistors::
+
+ | | wires
+ R + junction
+ -R-+-R- R 47 Ohm resistors
+ R
+ |
+
+The shielding is connected together. Active hubs are much more complicated;
+they are powered and contain electronics to amplify the signal and send it
+to other segments of the net. They usually have eight connectors. Active
+hubs come in two variants - dumb and smart. The dumb variant just
+amplifies, but the smart one decodes to digital and encodes back all packets
+coming through. This is much better if you have several hubs in the net,
+since many dumb active hubs may worsen the signal quality.
+
+And now to the cabling. What you can connect together:
+
+1. A card to a card. This is the simplest way of creating a 2-computer
+ network.
+
+2. A card to a passive hub. Remember that all unused connectors on the hub
+ must be properly terminated with 93 Ohm (or something else if you don't
+ have the right ones) terminators.
+
+ (Avery's note: oops, I didn't know that. Mine (TV cable) works
+ anyway, though.)
+
+3. A card to an active hub. Here is no need to terminate the unused
+ connectors except some kind of aesthetic feeling. But, there may not be
+ more than eleven active hubs between any two computers. That of course
+ doesn't limit the number of active hubs on the network.
+
+4. An active hub to another.
+
+5. An active hub to passive hub.
+
+Remember that you cannot connect two passive hubs together. The power loss
+implied by such a connection is too high for the net to operate reliably.
+
+An example of a typical ARCnet network::
+
+ R S - STAR type card
+ S------H--------A-------S R - Terminator
+ | | H - Hub
+ | | A - Active hub
+ | S----H----S
+ S |
+ |
+ S
+
+The BUS topology is very similar to the one used by Ethernet. The only
+difference is in cable and terminators: they should be 93 Ohm. Ethernet
+uses 50 Ohm impedance. You use T connectors to put the computers on a single
+line of cable, the bus. You have to put terminators at both ends of the
+cable. A typical BUS ARCnet network looks like::
+
+ RT----T------T------T------T------TR
+ B B B B B B
+
+ B - BUS type card
+ R - Terminator
+ T - T connector
+
+But that is not all! The two types can be connected together. According to
+the official documentation the only way of connecting them is using an active
+hub::
+
+ A------T------T------TR
+ | B B B
+ S---H---S
+ |
+ S
+
+The official docs also state that you can use STAR cards at the ends of
+BUS network in place of a BUS card and a terminator::
+
+ S------T------T------S
+ B B
+
+But, according to my own experiments, you can simply hang a BUS type card
+anywhere in middle of a cable in a STAR topology network. And more - you
+can use the bus card in place of any star card if you use a terminator. Then
+you can build very complicated networks fulfilling all your needs! An
+example::
+
+ S
+ |
+ RT------T-------T------H------S
+ B B B |
+ | R
+ S------A------T-------T-------A-------H------TR
+ | B B | | B
+ | S BT |
+ | | | S----A-----S
+ S------H---A----S | |
+ | | S------T----H---S |
+ S S B R S
+
+A basically different cabling scheme is used with Twisted Pair cabling. Each
+of the TP cards has two RJ (phone-cord style) connectors. The cards are
+then daisy-chained together using a cable connecting every two neighboring
+cards. The ends are terminated with RJ 93 Ohm terminators which plug into
+the empty connectors of cards on the ends of the chain. An example::
+
+ ___________ ___________
+ _R_|_ _|_|_ _|_R_
+ | | | | | |
+ |Card | |Card | |Card |
+ |_____| |_____| |_____|
+
+
+There are also hubs for the TP topology. There is nothing difficult
+involved in using them; you just connect a TP chain to a hub on any end or
+even at both. This way you can create almost any network configuration.
+The maximum of 11 hubs between any two computers on the net applies here as
+well. An example::
+
+ RP-------P--------P--------H-----P------P-----PR
+ |
+ RP-----H--------P--------H-----P------PR
+ | |
+ PR PR
+
+ R - RJ Terminator
+ P - TP Card
+ H - TP Hub
+
+Like any network, ARCnet has a limited cable length. These are the maximum
+cable lengths between two active ends (an active end being an active hub or
+a STAR card).
+
+ ========== ======= ===========
+ RG-62 93 Ohm up to 650 m
+ RG-59/U 75 Ohm up to 457 m
+ RG-11/U 75 Ohm up to 533 m
+ IBM Type 1 150 Ohm up to 200 m
+ IBM Type 3 100 Ohm up to 100 m
+ ========== ======= ===========
+
+The maximum length of all cables connected to a passive hub is limited to 65
+meters for RG-62 cabling; less for others. You can see that using passive
+hubs in a large network is a bad idea. The maximum length of a single "BUS
+Trunk" is about 300 meters for RG-62. The maximum distance between the two
+most distant points of the net is limited to 3000 meters. The maximum length
+of a TP cable between two cards/hubs is 650 meters.
+
+
+Setting the Jumpers
+===================
+
+All ARCnet cards should have a total of four or five different settings:
+
+ - the I/O address: this is the "port" your ARCnet card is on. Probed
+ values in the Linux ARCnet driver are only from 0x200 through 0x3F0. (If
+ your card has additional ones, which is possible, please tell me.) This
+ should not be the same as any other device on your system. According to
+ a doc I got from Novell, MS Windows prefers values of 0x300 or more,
+ eating net connections on my system (at least) otherwise. My guess is
+ this may be because, if your card is at 0x2E0, probing for a serial port
+ at 0x2E8 will reset the card and probably mess things up royally.
+
+ - Avery's favourite: 0x300.
+
+ - the IRQ: on 8-bit cards, it might be 2 (9), 3, 4, 5, or 7.
+ on 16-bit cards, it might be 2 (9), 3, 4, 5, 7, or 10-15.
+
+ Make sure this is different from any other card on your system. Note
+ that IRQ2 is the same as IRQ9, as far as Linux is concerned. You can
+ "cat /proc/interrupts" for a somewhat complete list of which ones are in
+ use at any given time. Here is a list of common usages from Vojtech
+ Pavlik <vojtech@suse.cz>:
+
+ ("Not on bus" means there is no way for a card to generate this
+ interrupt)
+
+ ====== =========================================================
+ IRQ 0 Timer 0 (Not on bus)
+ IRQ 1 Keyboard (Not on bus)
+ IRQ 2 IRQ Controller 2 (Not on bus, nor does interrupt the CPU)
+ IRQ 3 COM2
+ IRQ 4 COM1
+ IRQ 5 FREE (LPT2 if you have it; sometimes COM3; maybe PLIP)
+ IRQ 6 Floppy disk controller
+ IRQ 7 FREE (LPT1 if you don't use the polling driver; PLIP)
+ IRQ 8 Realtime Clock Interrupt (Not on bus)
+ IRQ 9 FREE (VGA vertical sync interrupt if enabled)
+ IRQ 10 FREE
+ IRQ 11 FREE
+ IRQ 12 FREE
+ IRQ 13 Numeric Coprocessor (Not on bus)
+ IRQ 14 Fixed Disk Controller
+ IRQ 15 FREE (Fixed Disk Controller 2 if you have it)
+ ====== =========================================================
+
+
+ .. note::
+
+ IRQ 9 is used on some video cards for the "vertical retrace"
+ interrupt. This interrupt would have been handy for things like
+ video games, as it occurs exactly once per screen refresh, but
+ unfortunately IBM cancelled this feature starting with the original
+ VGA and thus many VGA/SVGA cards do not support it. For this
+ reason, no modern software uses this interrupt and it can almost
+ always be safely disabled, if your video card supports it at all.
+
+ If your card for some reason CANNOT disable this IRQ (usually there
+ is a jumper), one solution would be to clip the printed circuit
+ contact on the board: it's the fourth contact from the left on the
+ back side. I take no responsibility if you try this.
+
+ - Avery's favourite: IRQ2 (actually IRQ9). Watch that VGA, though.
+
+ - the memory address: Unlike most cards, ARCnets use "shared memory" for
+ copying buffers around. Make SURE it doesn't conflict with any other
+ used memory in your system!
+
+ ::
+
+ A0000 - VGA graphics memory (ok if you don't have VGA)
+ B0000 - Monochrome text mode
+ C0000 \ One of these is your VGA BIOS - usually C0000.
+ E0000 /
+ F0000 - System BIOS
+
+ Anything less than 0xA0000 is, well, a BAD idea since it isn't above
+ 640k.
+
+ - Avery's favourite: 0xD0000
+
+ - the station address: Every ARCnet card has its own "unique" network
+ address from 0 to 255. Unlike Ethernet, you can set this address
+ yourself with a jumper or switch (or on some cards, with special
+ software). Since it's only 8 bits, you can only have 254 ARCnet cards
+ on a network. DON'T use 0 or 255, since these are reserved (although
+ neat stuff will probably happen if you DO use them). By the way, if you
+ haven't already guessed, don't set this the same as any other ARCnet on
+ your network!
+
+ - Avery's favourite: 3 and 4. Not that it matters.
+
+ - There may be ETS1 and ETS2 settings. These may or may not make a
+ difference on your card (many manuals call them "reserved"), but are
+ used to change the delays used when powering up a computer on the
+ network. This is only necessary when wiring VERY long range ARCnet
+ networks, on the order of 4km or so; in any case, the only real
+ requirement here is that all cards on the network with ETS1 and ETS2
+ jumpers have them in the same position. Chris Hindy <chrish@io.org>
+ sent in a chart with actual values for this:
+
+ ======= ======= =============== ====================
+ ET1 ET2 Response Time Reconfiguration Time
+ ======= ======= =============== ====================
+ open open 74.7us 840us
+ open closed 283.4us 1680us
+ closed open 561.8us 1680us
+ closed closed 1118.6us 1680us
+ ======= ======= =============== ====================
+
+ Make sure you set ETS1 and ETS2 to the SAME VALUE for all cards on your
+ network.
+
+Also, on many cards (not mine, though) there are red and green LED's.
+Vojtech Pavlik <vojtech@suse.cz> tells me this is what they mean:
+
+ =============== =============== =====================================
+ GREEN RED Status
+ =============== =============== =====================================
+ OFF OFF Power off
+ OFF Short flashes Cabling problems (broken cable or not
+ terminated)
+ OFF (short) ON Card init
+ ON ON Normal state - everything OK, nothing
+ happens
+ ON Long flashes Data transfer
+ ON OFF Never happens (maybe when wrong ID)
+ =============== =============== =====================================
+
+
+The following is all the specific information people have sent me about
+their own particular ARCnet cards. It is officially a mess, and contains
+huge amounts of duplicated information. I have no time to fix it. If you
+want to, PLEASE DO! Just send me a 'diff -u' of all your changes.
+
+The model # is listed right above specifics for that card, so you should be
+able to use your text viewer's "search" function to find the entry you want.
+If you don't KNOW what kind of card you have, try looking through the
+various diagrams to see if you can tell.
+
+If your model isn't listed and/or has different settings, PLEASE PLEASE
+tell me. I had to figure mine out without the manual, and it WASN'T FUN!
+
+Even if your ARCnet model isn't listed, but has the same jumpers as another
+model that is, please e-mail me to say so.
+
+Cards Listed in this file (in this order, mostly):
+
+ =============== ======================= ====
+ Manufacturer Model # Bits
+ =============== ======================= ====
+ SMC PC100 8
+ SMC PC110 8
+ SMC PC120 8
+ SMC PC130 8
+ SMC PC270E 8
+ SMC PC500 16
+ SMC PC500Longboard 16
+ SMC PC550Longboard 16
+ SMC PC600 16
+ SMC PC710 8
+ SMC? LCS-8830(-T) 8/16
+ Puredata PDI507 8
+ CNet Tech CN120-Series 8
+ CNet Tech CN160-Series 16
+ Lantech? UM9065L chipset 8
+ Acer 5210-003 8
+ Datapoint? LAN-ARC-8 8
+ Topware TA-ARC/10 8
+ Thomas-Conrad 500-6242-0097 REV A 8
+ Waterloo? (C)1985 Waterloo Micro. 8
+ No Name -- 8/16
+ No Name Taiwan R.O.C? 8
+ No Name Model 9058 8
+ Tiara Tiara Lancard? 8
+ =============== ======================= ====
+
+
+* SMC = Standard Microsystems Corp.
+* CNet Tech = CNet Technology, Inc.
+
+Unclassified Stuff
+==================
+
+ - Please send any other information you can find.
+
+ - And some other stuff (more info is welcome!)::
+
+ From: root@ultraworld.xs4all.nl (Timo Hilbrink)
+ To: apenwarr@foxnet.net (Avery Pennarun)
+ Date: Wed, 26 Oct 1994 02:10:32 +0000 (GMT)
+ Reply-To: timoh@xs4all.nl
+
+ [...parts deleted...]
+
+ About the jumpers: On my PC130 there is one more jumper, located near the
+ cable-connector and it's for changing to star or bus topology;
+ closed: star - open: bus
+ On the PC500 are some more jumper-pins, one block labeled with RX,PDN,TXI
+ and another with ALE,LA17,LA18,LA19 these are undocumented..
+
+ [...more parts deleted...]
+
+ --- CUT ---
+
+Standard Microsystems Corp (SMC)
+================================
+
+PC100, PC110, PC120, PC130 (8-bit cards) and PC500, PC600 (16-bit cards)
+------------------------------------------------------------------------
+
+ - mainly from Avery Pennarun <apenwarr@worldvisions.ca>. Values depicted
+ are from Avery's setup.
+ - special thanks to Timo Hilbrink <timoh@xs4all.nl> for noting that PC120,
+ 130, 500, and 600 all have the same switches as Avery's PC100.
+ PC500/600 have several extra, undocumented pins though. (?)
+ - PC110 settings were verified by Stephen A. Wood <saw@cebaf.gov>
+ - Also, the JP- and S-numbers probably don't match your card exactly. Try
+ to find jumpers/switches with the same number of settings - it's
+ probably more reliable.
+
+::
+
+ JP5 [|] : : : :
+ (IRQ Setting) IRQ2 IRQ3 IRQ4 IRQ5 IRQ7
+ Put exactly one jumper on exactly one set of pins.
+
+
+ 1 2 3 4 5 6 7 8 9 10
+ S1 /----------------------------------\
+ (I/O and Memory | 1 1 * 0 0 0 0 * 1 1 0 1 |
+ addresses) \----------------------------------/
+ |--| |--------| |--------|
+ (a) (b) (m)
+
+ WARNING. It's very important when setting these which way
+ you're holding the card, and which way you think is '1'!
+
+ If you suspect that your settings are not being made
+ correctly, try reversing the direction or inverting the
+ switch positions.
+
+ a: The first digit of the I/O address.
+ Setting Value
+ ------- -----
+ 00 0
+ 01 1
+ 10 2
+ 11 3
+
+ b: The second digit of the I/O address.
+ Setting Value
+ ------- -----
+ 0000 0
+ 0001 1
+ 0010 2
+ ... ...
+ 1110 E
+ 1111 F
+
+ The I/O address is in the form ab0. For example, if
+ a is 0x2 and b is 0xE, the address will be 0x2E0.
+
+ DO NOT SET THIS LESS THAN 0x200!!!!!
+
+
+ m: The first digit of the memory address.
+ Setting Value
+ ------- -----
+ 0000 0
+ 0001 1
+ 0010 2
+ ... ...
+ 1110 E
+ 1111 F
+
+ The memory address is in the form m0000. For example, if
+ m is D, the address will be 0xD0000.
+
+ DO NOT SET THIS TO C0000, F0000, OR LESS THAN A0000!
+
+ 1 2 3 4 5 6 7 8
+ S2 /--------------------------\
+ (Station Address) | 1 1 0 0 0 0 0 0 |
+ \--------------------------/
+
+ Setting Value
+ ------- -----
+ 00000000 00
+ 10000000 01
+ 01000000 02
+ ...
+ 01111111 FE
+ 11111111 FF
+
+ Note that this is binary with the digits reversed!
+
+ DO NOT SET THIS TO 0 OR 255 (0xFF)!
+
+
+PC130E/PC270E (8-bit cards)
+---------------------------
+
+ - from Juergen Seifert <seifert@htwm.de>
+
+This description has been written by Juergen Seifert <seifert@htwm.de>
+using information from the following Original SMC Manual
+
+ "Configuration Guide for ARCNET(R)-PC130E/PC270 Network
+ Controller Boards Pub. # 900.044A June, 1989"
+
+ARCNET is a registered trademark of the Datapoint Corporation
+SMC is a registered trademark of the Standard Microsystems Corporation
+
+The PC130E is an enhanced version of the PC130 board, is equipped with a
+standard BNC female connector for connection to RG-62/U coax cable.
+Since this board is designed both for point-to-point connection in star
+networks and for connection to bus networks, it is downwardly compatible
+with all the other standard boards designed for coax networks (that is,
+the PC120, PC110 and PC100 star topology boards and the PC220, PC210 and
+PC200 bus topology boards).
+
+The PC270E is an enhanced version of the PC260 board, is equipped with two
+modular RJ11-type jacks for connection to twisted pair wiring.
+It can be used in a star or a daisy-chained network.
+
+::
+
+ 8 7 6 5 4 3 2 1
+ ________________________________________________________________
+ | | S1 | |
+ | |_________________| |
+ | Offs|Base |I/O Addr |
+ | RAM Addr | ___|
+ | ___ ___ CR3 |___|
+ | | \/ | CR4 |___|
+ | | PROM | ___|
+ | | | N | | 8
+ | | SOCKET | o | | 7
+ | |________| d | | 6
+ | ___________________ e | | 5
+ | | | A | S | 4
+ | |oo| EXT2 | | d | 2 | 3
+ | |oo| EXT1 | SMC | d | | 2
+ | |oo| ROM | 90C63 | r |___| 1
+ | |oo| IRQ7 | | |o| _____|
+ | |oo| IRQ5 | | |o| | J1 |
+ | |oo| IRQ4 | | STAR |_____|
+ | |oo| IRQ3 | | | J2 |
+ | |oo| IRQ2 |___________________| |_____|
+ |___ ______________|
+ | |
+ |_____________________________________________|
+
+Legend::
+
+ SMC 90C63 ARCNET Controller / Transceiver /Logic
+ S1 1-3: I/O Base Address Select
+ 4-6: Memory Base Address Select
+ 7-8: RAM Offset Select
+ S2 1-8: Node ID Select
+ EXT Extended Timeout Select
+ ROM ROM Enable Select
+ STAR Selected - Star Topology (PC130E only)
+ Deselected - Bus Topology (PC130E only)
+ CR3/CR4 Diagnostic LEDs
+ J1 BNC RG62/U Connector (PC130E only)
+ J1 6-position Telephone Jack (PC270E only)
+ J2 6-position Telephone Jack (PC270E only)
+
+Setting one of the switches to Off/Open means "1", On/Closed means "0".
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in group S2 are used to set the node ID.
+These switches work in a way similar to the PC100-series cards; see that
+entry for more information.
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The first three switches in switch group S1 are used to select one
+of eight possible I/O Base addresses using the following table::
+
+
+ Switch | Hex I/O
+ 1 2 3 | Address
+ -------|--------
+ 0 0 0 | 260
+ 0 0 1 | 290
+ 0 1 0 | 2E0 (Manufacturer's default)
+ 0 1 1 | 2F0
+ 1 0 0 | 300
+ 1 0 1 | 350
+ 1 1 0 | 380
+ 1 1 1 | 3E0
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer requires 2K of a 16K block of RAM. The base of this
+16K block can be located in any of eight positions.
+Switches 4-6 of switch group S1 select the Base of the 16K block.
+Within that 16K address space, the buffer may be assigned any one of four
+positions, determined by the offset, switches 7 and 8 of group S1.
+
+::
+
+ Switch | Hex RAM | Hex ROM
+ 4 5 6 7 8 | Address | Address *)
+ -----------|---------|-----------
+ 0 0 0 0 0 | C0000 | C2000
+ 0 0 0 0 1 | C0800 | C2000
+ 0 0 0 1 0 | C1000 | C2000
+ 0 0 0 1 1 | C1800 | C2000
+ | |
+ 0 0 1 0 0 | C4000 | C6000
+ 0 0 1 0 1 | C4800 | C6000
+ 0 0 1 1 0 | C5000 | C6000
+ 0 0 1 1 1 | C5800 | C6000
+ | |
+ 0 1 0 0 0 | CC000 | CE000
+ 0 1 0 0 1 | CC800 | CE000
+ 0 1 0 1 0 | CD000 | CE000
+ 0 1 0 1 1 | CD800 | CE000
+ | |
+ 0 1 1 0 0 | D0000 | D2000 (Manufacturer's default)
+ 0 1 1 0 1 | D0800 | D2000
+ 0 1 1 1 0 | D1000 | D2000
+ 0 1 1 1 1 | D1800 | D2000
+ | |
+ 1 0 0 0 0 | D4000 | D6000
+ 1 0 0 0 1 | D4800 | D6000
+ 1 0 0 1 0 | D5000 | D6000
+ 1 0 0 1 1 | D5800 | D6000
+ | |
+ 1 0 1 0 0 | D8000 | DA000
+ 1 0 1 0 1 | D8800 | DA000
+ 1 0 1 1 0 | D9000 | DA000
+ 1 0 1 1 1 | D9800 | DA000
+ | |
+ 1 1 0 0 0 | DC000 | DE000
+ 1 1 0 0 1 | DC800 | DE000
+ 1 1 0 1 0 | DD000 | DE000
+ 1 1 0 1 1 | DD800 | DE000
+ | |
+ 1 1 1 0 0 | E0000 | E2000
+ 1 1 1 0 1 | E0800 | E2000
+ 1 1 1 1 0 | E1000 | E2000
+ 1 1 1 1 1 | E1800 | E2000
+
+ *) To enable the 8K Boot PROM install the jumper ROM.
+ The default is jumper ROM not installed.
+
+
+Setting the Timeouts and Interrupt
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The jumpers labeled EXT1 and EXT2 are used to determine the timeout
+parameters. These two jumpers are normally left open.
+
+To select a hardware interrupt level set one (only one!) of the jumpers
+IRQ2, IRQ3, IRQ4, IRQ5, IRQ7. The Manufacturer's default is IRQ2.
+
+
+Configuring the PC130E for Star or Bus Topology
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The single jumper labeled STAR is used to configure the PC130E board for
+star or bus topology.
+When the jumper is installed, the board may be used in a star network, when
+it is removed, the board can be used in a bus topology.
+
+
+Diagnostic LEDs
+^^^^^^^^^^^^^^^
+
+Two diagnostic LEDs are visible on the rear bracket of the board.
+The green LED monitors the network activity: the red one shows the
+board activity::
+
+ Green | Status Red | Status
+ -------|------------------- ---------|-------------------
+ on | normal activity flash/on | data transfer
+ blink | reconfiguration off | no data transfer;
+ off | defective board or | incorrect memory or
+ | node ID is zero | I/O address
+
+
+PC500/PC550 Longboard (16-bit cards)
+------------------------------------
+
+ - from Juergen Seifert <seifert@htwm.de>
+
+
+ .. note::
+
+ There is another Version of the PC500 called Short Version, which
+ is different in hard- and software! The most important differences
+ are:
+
+ - The long board has no Shared memory.
+ - On the long board the selection of the interrupt is done by binary
+ coded switch, on the short board directly by jumper.
+
+[Avery's note: pay special attention to that: the long board HAS NO SHARED
+MEMORY. This means the current Linux-ARCnet driver can't use these cards.
+I have obtained a PC500Longboard and will be doing some experiments on it in
+the future, but don't hold your breath. Thanks again to Juergen Seifert for
+his advice about this!]
+
+This description has been written by Juergen Seifert <seifert@htwm.de>
+using information from the following Original SMC Manual
+
+ "Configuration Guide for SMC ARCNET-PC500/PC550
+ Series Network Controller Boards Pub. # 900.033 Rev. A
+ November, 1989"
+
+ARCNET is a registered trademark of the Datapoint Corporation
+SMC is a registered trademark of the Standard Microsystems Corporation
+
+The PC500 is equipped with a standard BNC female connector for connection
+to RG-62/U coax cable.
+The board is designed both for point-to-point connection in star networks
+and for connection to bus networks.
+
+The PC550 is equipped with two modular RJ11-type jacks for connection
+to twisted pair wiring.
+It can be used in a star or a daisy-chained (BUS) network.
+
+::
+
+ 1
+ 0 9 8 7 6 5 4 3 2 1 6 5 4 3 2 1
+ ____________________________________________________________________
+ < | SW1 | | SW2 | |
+ > |_____________________| |_____________| |
+ < IRQ |I/O Addr |
+ > ___|
+ < CR4 |___|
+ > CR3 |___|
+ < ___|
+ > N | | 8
+ < o | | 7
+ > d | S | 6
+ < e | W | 5
+ > A | 3 | 4
+ < d | | 3
+ > d | | 2
+ < r |___| 1
+ > |o| _____|
+ < |o| | J1 |
+ > 3 1 JP6 |_____|
+ < |o|o| JP2 | J2 |
+ > |o|o| |_____|
+ < 4 2__ ______________|
+ > | | |
+ <____| |_____________________________________________|
+
+Legend::
+
+ SW1 1-6: I/O Base Address Select
+ 7-10: Interrupt Select
+ SW2 1-6: Reserved for Future Use
+ SW3 1-8: Node ID Select
+ JP2 1-4: Extended Timeout Select
+ JP6 Selected - Star Topology (PC500 only)
+ Deselected - Bus Topology (PC500 only)
+ CR3 Green Monitors Network Activity
+ CR4 Red Monitors Board Activity
+ J1 BNC RG62/U Connector (PC500 only)
+ J1 6-position Telephone Jack (PC550 only)
+ J2 6-position Telephone Jack (PC550 only)
+
+Setting one of the switches to Off/Open means "1", On/Closed means "0".
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in group SW3 are used to set the node ID. Each node
+attached to the network must have an unique node ID which must be
+different from 0.
+Switch 1 serves as the least significant bit (LSB).
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Value
+ -------|-------
+ 1 | 1
+ 2 | 2
+ 3 | 4
+ 4 | 8
+ 5 | 16
+ 6 | 32
+ 7 | 64
+ 8 | 128
+
+Some Examples::
+
+ Switch | Hex | Decimal
+ 8 7 6 5 4 3 2 1 | Node ID | Node ID
+ ----------------|---------|---------
+ 0 0 0 0 0 0 0 0 | not allowed
+ 0 0 0 0 0 0 0 1 | 1 | 1
+ 0 0 0 0 0 0 1 0 | 2 | 2
+ 0 0 0 0 0 0 1 1 | 3 | 3
+ . . . | |
+ 0 1 0 1 0 1 0 1 | 55 | 85
+ . . . | |
+ 1 0 1 0 1 0 1 0 | AA | 170
+ . . . | |
+ 1 1 1 1 1 1 0 1 | FD | 253
+ 1 1 1 1 1 1 1 0 | FE | 254
+ 1 1 1 1 1 1 1 1 | FF | 255
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The first six switches in switch group SW1 are used to select one
+of 32 possible I/O Base addresses using the following table::
+
+ Switch | Hex I/O
+ 6 5 4 3 2 1 | Address
+ -------------|--------
+ 0 1 0 0 0 0 | 200
+ 0 1 0 0 0 1 | 210
+ 0 1 0 0 1 0 | 220
+ 0 1 0 0 1 1 | 230
+ 0 1 0 1 0 0 | 240
+ 0 1 0 1 0 1 | 250
+ 0 1 0 1 1 0 | 260
+ 0 1 0 1 1 1 | 270
+ 0 1 1 0 0 0 | 280
+ 0 1 1 0 0 1 | 290
+ 0 1 1 0 1 0 | 2A0
+ 0 1 1 0 1 1 | 2B0
+ 0 1 1 1 0 0 | 2C0
+ 0 1 1 1 0 1 | 2D0
+ 0 1 1 1 1 0 | 2E0 (Manufacturer's default)
+ 0 1 1 1 1 1 | 2F0
+ 1 1 0 0 0 0 | 300
+ 1 1 0 0 0 1 | 310
+ 1 1 0 0 1 0 | 320
+ 1 1 0 0 1 1 | 330
+ 1 1 0 1 0 0 | 340
+ 1 1 0 1 0 1 | 350
+ 1 1 0 1 1 0 | 360
+ 1 1 0 1 1 1 | 370
+ 1 1 1 0 0 0 | 380
+ 1 1 1 0 0 1 | 390
+ 1 1 1 0 1 0 | 3A0
+ 1 1 1 0 1 1 | 3B0
+ 1 1 1 1 0 0 | 3C0
+ 1 1 1 1 0 1 | 3D0
+ 1 1 1 1 1 0 | 3E0
+ 1 1 1 1 1 1 | 3F0
+
+
+Setting the Interrupt
+^^^^^^^^^^^^^^^^^^^^^
+
+Switches seven through ten of switch group SW1 are used to select the
+interrupt level. The interrupt level is binary coded, so selections
+from 0 to 15 would be possible, but only the following eight values will
+be supported: 3, 4, 5, 7, 9, 10, 11, 12.
+
+::
+
+ Switch | IRQ
+ 10 9 8 7 |
+ ---------|--------
+ 0 0 1 1 | 3
+ 0 1 0 0 | 4
+ 0 1 0 1 | 5
+ 0 1 1 1 | 7
+ 1 0 0 1 | 9 (=2) (default)
+ 1 0 1 0 | 10
+ 1 0 1 1 | 11
+ 1 1 0 0 | 12
+
+
+Setting the Timeouts
+^^^^^^^^^^^^^^^^^^^^
+
+The two jumpers JP2 (1-4) are used to determine the timeout parameters.
+These two jumpers are normally left open.
+Refer to the COM9026 Data Sheet for alternate configurations.
+
+
+Configuring the PC500 for Star or Bus Topology
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The single jumper labeled JP6 is used to configure the PC500 board for
+star or bus topology.
+When the jumper is installed, the board may be used in a star network, when
+it is removed, the board can be used in a bus topology.
+
+
+Diagnostic LEDs
+^^^^^^^^^^^^^^^
+
+Two diagnostic LEDs are visible on the rear bracket of the board.
+The green LED monitors the network activity: the red one shows the
+board activity::
+
+ Green | Status Red | Status
+ -------|------------------- ---------|-------------------
+ on | normal activity flash/on | data transfer
+ blink | reconfiguration off | no data transfer;
+ off | defective board or | incorrect memory or
+ | node ID is zero | I/O address
+
+
+PC710 (8-bit card)
+------------------
+
+ - from J.S. van Oosten <jvoosten@compiler.tdcnet.nl>
+
+Note: this data is gathered by experimenting and looking at info of other
+cards. However, I'm sure I got 99% of the settings right.
+
+The SMC710 card resembles the PC270 card, but is much more basic (i.e. no
+LEDs, RJ11 jacks, etc.) and 8 bit. Here's a little drawing::
+
+ _______________________________________
+ | +---------+ +---------+ |____
+ | | S2 | | S1 | |
+ | +---------+ +---------+ |
+ | |
+ | +===+ __ |
+ | | R | | | X-tal ###___
+ | | O | |__| ####__'|
+ | | M | || ###
+ | +===+ |
+ | |
+ | .. JP1 +----------+ |
+ | .. | big chip | |
+ | .. | 90C63 | |
+ | .. | | |
+ | .. +----------+ |
+ ------- -----------
+ |||||||||||||||||||||
+
+The row of jumpers at JP1 actually consists of 8 jumpers, (sometimes
+labelled) the same as on the PC270, from top to bottom: EXT2, EXT1, ROM,
+IRQ7, IRQ5, IRQ4, IRQ3, IRQ2 (gee, wonder what they would do? :-) )
+
+S1 and S2 perform the same function as on the PC270, only their numbers
+are swapped (S1 is the nodeaddress, S2 sets IO- and RAM-address).
+
+I know it works when connected to a PC110 type ARCnet board.
+
+
+*****************************************************************************
+
+Possibly SMC
+============
+
+LCS-8830(-T) (8 and 16-bit cards)
+---------------------------------
+
+ - from Mathias Katzer <mkatzer@HRZ.Uni-Bielefeld.DE>
+ - Marek Michalkiewicz <marekm@i17linuxb.ists.pwr.wroc.pl> says the
+ LCS-8830 is slightly different from LCS-8830-T. These are 8 bit, BUS
+ only (the JP0 jumper is hardwired), and BNC only.
+
+This is a LCS-8830-T made by SMC, I think ('SMC' only appears on one PLCC,
+nowhere else, not even on the few Xeroxed sheets from the manual).
+
+SMC ARCnet Board Type LCS-8830-T::
+
+ ------------------------------------
+ | |
+ | JP3 88 8 JP2 |
+ | ##### | \ |
+ | ##### ET1 ET2 ###|
+ | 8 ###|
+ | U3 SW 1 JP0 ###| Phone Jacks
+ | -- ###|
+ | | | |
+ | | | SW2 |
+ | | | |
+ | | | ##### |
+ | -- ##### #### BNC Connector
+ | ####
+ | 888888 JP1 |
+ | 234567 |
+ -- -------
+ |||||||||||||||||||||||||||
+ --------------------------
+
+
+ SW1: DIP-Switches for Station Address
+ SW2: DIP-Switches for Memory Base and I/O Base addresses
+
+ JP0: If closed, internal termination on (default open)
+ JP1: IRQ Jumpers
+ JP2: Boot-ROM enabled if closed
+ JP3: Jumpers for response timeout
+
+ U3: Boot-ROM Socket
+
+
+ ET1 ET2 Response Time Idle Time Reconfiguration Time
+
+ 78 86 840
+ X 285 316 1680
+ X 563 624 1680
+ X X 1130 1237 1680
+
+ (X means closed jumper)
+
+ (DIP-Switch downwards means "0")
+
+The station address is binary-coded with SW1.
+
+The I/O base address is coded with DIP-Switches 6,7 and 8 of SW2:
+
+======== ========
+Switches Base
+678 Address
+======== ========
+000 260-26f
+100 290-29f
+010 2e0-2ef
+110 2f0-2ff
+001 300-30f
+101 350-35f
+011 380-38f
+111 3e0-3ef
+======== ========
+
+
+DIP Switches 1-5 of SW2 encode the RAM and ROM Address Range:
+
+======== ============= ================
+Switches RAM ROM
+12345 Address Range Address Range
+======== ============= ================
+00000 C:0000-C:07ff C:2000-C:3fff
+10000 C:0800-C:0fff
+01000 C:1000-C:17ff
+11000 C:1800-C:1fff
+00100 C:4000-C:47ff C:6000-C:7fff
+10100 C:4800-C:4fff
+01100 C:5000-C:57ff
+11100 C:5800-C:5fff
+00010 C:C000-C:C7ff C:E000-C:ffff
+10010 C:C800-C:Cfff
+01010 C:D000-C:D7ff
+11010 C:D800-C:Dfff
+00110 D:0000-D:07ff D:2000-D:3fff
+10110 D:0800-D:0fff
+01110 D:1000-D:17ff
+11110 D:1800-D:1fff
+00001 D:4000-D:47ff D:6000-D:7fff
+10001 D:4800-D:4fff
+01001 D:5000-D:57ff
+11001 D:5800-D:5fff
+00101 D:8000-D:87ff D:A000-D:bfff
+10101 D:8800-D:8fff
+01101 D:9000-D:97ff
+11101 D:9800-D:9fff
+00011 D:C000-D:c7ff D:E000-D:ffff
+10011 D:C800-D:cfff
+01011 D:D000-D:d7ff
+11011 D:D800-D:dfff
+00111 E:0000-E:07ff E:2000-E:3fff
+10111 E:0800-E:0fff
+01111 E:1000-E:17ff
+11111 E:1800-E:1fff
+======== ============= ================
+
+
+PureData Corp
+=============
+
+PDI507 (8-bit card)
+--------------------
+
+ - from Mark Rejhon <mdrejhon@magi.com> (slight modifications by Avery)
+ - Avery's note: I think PDI508 cards (but definitely NOT PDI508Plus cards)
+ are mostly the same as this. PDI508Plus cards appear to be mainly
+ software-configured.
+
+Jumpers:
+
+ There is a jumper array at the bottom of the card, near the edge
+ connector. This array is labelled J1. They control the IRQs and
+ something else. Put only one jumper on the IRQ pins.
+
+ ETS1, ETS2 are for timing on very long distance networks. See the
+ more general information near the top of this file.
+
+ There is a J2 jumper on two pins. A jumper should be put on them,
+ since it was already there when I got the card. I don't know what
+ this jumper is for though.
+
+ There is a two-jumper array for J3. I don't know what it is for,
+ but there were already two jumpers on it when I got the card. It's
+ a six pin grid in a two-by-three fashion. The jumpers were
+ configured as follows::
+
+ .-------.
+ o | o o |
+ :-------: ------> Accessible end of card with connectors
+ o | o o | in this direction ------->
+ `-------'
+
+Carl de Billy <CARL@carainfo.com> explains J3 and J4:
+
+ J3 Diagram::
+
+ .-------.
+ o | o o |
+ :-------: TWIST Technology
+ o | o o |
+ `-------'
+ .-------.
+ | o o | o
+ :-------: COAX Technology
+ | o o | o
+ `-------'
+
+ - If using coax cable in a bus topology the J4 jumper must be removed;
+ place it on one pin.
+
+ - If using bus topology with twisted pair wiring move the J3
+ jumpers so they connect the middle pin and the pins closest to the RJ11
+ Connectors. Also the J4 jumper must be removed; place it on one pin of
+ J4 jumper for storage.
+
+ - If using star topology with twisted pair wiring move the J3
+ jumpers so they connect the middle pin and the pins closest to the RJ11
+ connectors.
+
+
+DIP Switches:
+
+ The DIP switches accessible on the accessible end of the card while
+ it is installed, is used to set the ARCnet address. There are 8
+ switches. Use an address from 1 to 254
+
+ ========== =========================
+ Switch No. ARCnet address
+ 12345678
+ ========== =========================
+ 00000000 FF (Don't use this!)
+ 00000001 FE
+ 00000010 FD
+ ...
+ 11111101 2
+ 11111110 1
+ 11111111 0 (Don't use this!)
+ ========== =========================
+
+ There is another array of eight DIP switches at the top of the
+ card. There are five labelled MS0-MS4 which seem to control the
+ memory address, and another three labelled IO0-IO2 which seem to
+ control the base I/O address of the card.
+
+ This was difficult to test by trial and error, and the I/O addresses
+ are in a weird order. This was tested by setting the DIP switches,
+ rebooting the computer, and attempting to load ARCETHER at various
+ addresses (mostly between 0x200 and 0x400). The address that caused
+ the red transmit LED to blink, is the one that I thought works.
+
+ Also, the address 0x3D0 seem to have a special meaning, since the
+ ARCETHER packet driver loaded fine, but without the red LED
+ blinking. I don't know what 0x3D0 is for though. I recommend using
+ an address of 0x300 since Windows may not like addresses below
+ 0x300.
+
+ ============= ===========
+ IO Switch No. I/O address
+ 210
+ ============= ===========
+ 111 0x260
+ 110 0x290
+ 101 0x2E0
+ 100 0x2F0
+ 011 0x300
+ 010 0x350
+ 001 0x380
+ 000 0x3E0
+ ============= ===========
+
+ The memory switches set a reserved address space of 0x1000 bytes
+ (0x100 segment units, or 4k). For example if I set an address of
+ 0xD000, it will use up addresses 0xD000 to 0xD100.
+
+ The memory switches were tested by booting using QEMM386 stealth,
+ and using LOADHI to see what address automatically became excluded
+ from the upper memory regions, and then attempting to load ARCETHER
+ using these addresses.
+
+ I recommend using an ARCnet memory address of 0xD000, and putting
+ the EMS page frame at 0xC000 while using QEMM stealth mode. That
+ way, you get contiguous high memory from 0xD100 almost all the way
+ the end of the megabyte.
+
+ Memory Switch 0 (MS0) didn't seem to work properly when set to OFF
+ on my card. It could be malfunctioning on my card. Experiment with
+ it ON first, and if it doesn't work, set it to OFF. (It may be a
+ modifier for the 0x200 bit?)
+
+ ============= ============================================
+ MS Switch No.
+ 43210 Memory address
+ ============= ============================================
+ 00001 0xE100 (guessed - was not detected by QEMM)
+ 00011 0xE000 (guessed - was not detected by QEMM)
+ 00101 0xDD00
+ 00111 0xDC00
+ 01001 0xD900
+ 01011 0xD800
+ 01101 0xD500
+ 01111 0xD400
+ 10001 0xD100
+ 10011 0xD000
+ 10101 0xCD00
+ 10111 0xCC00
+ 11001 0xC900 (guessed - crashes tested system)
+ 11011 0xC800 (guessed - crashes tested system)
+ 11101 0xC500 (guessed - crashes tested system)
+ 11111 0xC400 (guessed - crashes tested system)
+ ============= ============================================
+
+CNet Technology Inc.
+====================
+
+120 Series (8-bit cards)
+------------------------
+ - from Juergen Seifert <seifert@htwm.de>
+
+This description has been written by Juergen Seifert <seifert@htwm.de>
+using information from the following Original CNet Manual
+
+ "ARCNET USER'S MANUAL for
+ CN120A
+ CN120AB
+ CN120TP
+ CN120ST
+ CN120SBT
+ P/N:12-01-0007
+ Revision 3.00"
+
+ARCNET is a registered trademark of the Datapoint Corporation
+
+- P/N 120A ARCNET 8 bit XT/AT Star
+- P/N 120AB ARCNET 8 bit XT/AT Bus
+- P/N 120TP ARCNET 8 bit XT/AT Twisted Pair
+- P/N 120ST ARCNET 8 bit XT/AT Star, Twisted Pair
+- P/N 120SBT ARCNET 8 bit XT/AT Star, Bus, Twisted Pair
+
+::
+
+ __________________________________________________________________
+ | |
+ | ___|
+ | LED |___|
+ | ___|
+ | N | | ID7
+ | o | | ID6
+ | d | S | ID5
+ | e | W | ID4
+ | ___________________ A | 2 | ID3
+ | | | d | | ID2
+ | | | 1 2 3 4 5 6 7 8 d | | ID1
+ | | | _________________ r |___| ID0
+ | | 90C65 || SW1 | ____|
+ | JP 8 7 | ||_________________| | |
+ | |o|o| JP1 | | | J2 |
+ | |o|o| |oo| | | JP 1 1 1 | |
+ | ______________ | | 0 1 2 |____|
+ | | PROM | |___________________| |o|o|o| _____|
+ | > SOCKET | JP 6 5 4 3 2 |o|o|o| | J1 |
+ | |______________| |o|o|o|o|o| |o|o|o| |_____|
+ |_____ |o|o|o|o|o| ______________|
+ | |
+ |_____________________________________________|
+
+Legend::
+
+ 90C65 ARCNET Probe
+ S1 1-5: Base Memory Address Select
+ 6-8: Base I/O Address Select
+ S2 1-8: Node ID Select (ID0-ID7)
+ JP1 ROM Enable Select
+ JP2 IRQ2
+ JP3 IRQ3
+ JP4 IRQ4
+ JP5 IRQ5
+ JP6 IRQ7
+ JP7/JP8 ET1, ET2 Timeout Parameters
+ JP10/JP11 Coax / Twisted Pair Select (CN120ST/SBT only)
+ JP12 Terminator Select (CN120AB/ST/SBT only)
+ J1 BNC RG62/U Connector (all except CN120TP)
+ J2 Two 6-position Telephone Jack (CN120TP/ST/SBT only)
+
+Setting one of the switches to Off means "1", On means "0".
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in SW2 are used to set the node ID. Each node attached
+to the network must have an unique node ID which must be different from 0.
+Switch 1 (ID0) serves as the least significant bit (LSB).
+
+The node ID is the sum of the values of all switches set to "1"
+These values are:
+
+ ======= ====== =====
+ Switch Label Value
+ ======= ====== =====
+ 1 ID0 1
+ 2 ID1 2
+ 3 ID2 4
+ 4 ID3 8
+ 5 ID4 16
+ 6 ID5 32
+ 7 ID6 64
+ 8 ID7 128
+ ======= ====== =====
+
+Some Examples::
+
+ Switch | Hex | Decimal
+ 8 7 6 5 4 3 2 1 | Node ID | Node ID
+ ----------------|---------|---------
+ 0 0 0 0 0 0 0 0 | not allowed
+ 0 0 0 0 0 0 0 1 | 1 | 1
+ 0 0 0 0 0 0 1 0 | 2 | 2
+ 0 0 0 0 0 0 1 1 | 3 | 3
+ . . . | |
+ 0 1 0 1 0 1 0 1 | 55 | 85
+ . . . | |
+ 1 0 1 0 1 0 1 0 | AA | 170
+ . . . | |
+ 1 1 1 1 1 1 0 1 | FD | 253
+ 1 1 1 1 1 1 1 0 | FE | 254
+ 1 1 1 1 1 1 1 1 | FF | 255
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The last three switches in switch block SW1 are used to select one
+of eight possible I/O Base addresses using the following table::
+
+
+ Switch | Hex I/O
+ 6 7 8 | Address
+ ------------|--------
+ ON ON ON | 260
+ OFF ON ON | 290
+ ON OFF ON | 2E0 (Manufacturer's default)
+ OFF OFF ON | 2F0
+ ON ON OFF | 300
+ OFF ON OFF | 350
+ ON OFF OFF | 380
+ OFF OFF OFF | 3E0
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer (RAM) requires 2K. The base of this buffer can be
+located in any of eight positions. The address of the Boot Prom is
+memory base + 8K or memory base + 0x2000.
+Switches 1-5 of switch block SW1 select the Memory Base address.
+
+::
+
+ Switch | Hex RAM | Hex ROM
+ 1 2 3 4 5 | Address | Address *)
+ --------------------|---------|-----------
+ ON ON ON ON ON | C0000 | C2000
+ ON ON OFF ON ON | C4000 | C6000
+ ON ON ON OFF ON | CC000 | CE000
+ ON ON OFF OFF ON | D0000 | D2000 (Manufacturer's default)
+ ON ON ON ON OFF | D4000 | D6000
+ ON ON OFF ON OFF | D8000 | DA000
+ ON ON ON OFF OFF | DC000 | DE000
+ ON ON OFF OFF OFF | E0000 | E2000
+
+ *) To enable the Boot ROM install the jumper JP1
+
+.. note::
+
+ Since the switches 1 and 2 are always set to ON it may be possible
+ that they can be used to add an offset of 2K, 4K or 6K to the base
+ address, but this feature is not documented in the manual and I
+ haven't tested it yet.
+
+
+Setting the Interrupt Line
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+To select a hardware interrupt level install one (only one!) of the jumpers
+JP2, JP3, JP4, JP5, JP6. JP2 is the default::
+
+ Jumper | IRQ
+ -------|-----
+ 2 | 2
+ 3 | 3
+ 4 | 4
+ 5 | 5
+ 6 | 7
+
+
+Setting the Internal Terminator on CN120AB/TP/SBT
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The jumper JP12 is used to enable the internal terminator::
+
+ -----
+ 0 | 0 |
+ ----- ON | | ON
+ | 0 | | 0 |
+ | | OFF ----- OFF
+ | 0 | 0
+ -----
+ Terminator Terminator
+ disabled enabled
+
+
+Selecting the Connector Type on CN120ST/SBT
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+::
+
+ JP10 JP11 JP10 JP11
+ ----- -----
+ 0 0 | 0 | | 0 |
+ ----- ----- | | | |
+ | 0 | | 0 | | 0 | | 0 |
+ | | | | ----- -----
+ | 0 | | 0 | 0 0
+ ----- -----
+ Coaxial Cable Twisted Pair Cable
+ (Default)
+
+
+Setting the Timeout Parameters
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The jumpers labeled EXT1 and EXT2 are used to determine the timeout
+parameters. These two jumpers are normally left open.
+
+
+CNet Technology Inc.
+====================
+
+160 Series (16-bit cards)
+-------------------------
+ - from Juergen Seifert <seifert@htwm.de>
+
+This description has been written by Juergen Seifert <seifert@htwm.de>
+using information from the following Original CNet Manual
+
+ "ARCNET USER'S MANUAL for
+ CN160A CN160AB CN160TP
+ P/N:12-01-0006 Revision 3.00"
+
+ARCNET is a registered trademark of the Datapoint Corporation
+
+- P/N 160A ARCNET 16 bit XT/AT Star
+- P/N 160AB ARCNET 16 bit XT/AT Bus
+- P/N 160TP ARCNET 16 bit XT/AT Twisted Pair
+
+::
+
+ ___________________________________________________________________
+ < _________________________ ___|
+ > |oo| JP2 | | LED |___|
+ < |oo| JP1 | 9026 | LED |___|
+ > |_________________________| ___|
+ < N | | ID7
+ > 1 o | | ID6
+ < 1 2 3 4 5 6 7 8 9 0 d | S | ID5
+ > _______________ _____________________ e | W | ID4
+ < | PROM | | SW1 | A | 2 | ID3
+ > > SOCKET | |_____________________| d | | ID2
+ < |_______________| | IO-Base | MEM | d | | ID1
+ > r |___| ID0
+ < ____|
+ > | |
+ < | J1 |
+ > | |
+ < |____|
+ > 1 1 1 1 |
+ < 3 4 5 6 7 JP 8 9 0 1 2 3 |
+ > |o|o|o|o|o| |o|o|o|o|o|o| |
+ < |o|o|o|o|o| __ |o|o|o|o|o|o| ___________|
+ > | | |
+ <____________| |_______________________________________|
+
+Legend::
+
+ 9026 ARCNET Probe
+ SW1 1-6: Base I/O Address Select
+ 7-10: Base Memory Address Select
+ SW2 1-8: Node ID Select (ID0-ID7)
+ JP1/JP2 ET1, ET2 Timeout Parameters
+ JP3-JP13 Interrupt Select
+ J1 BNC RG62/U Connector (CN160A/AB only)
+ J1 Two 6-position Telephone Jack (CN160TP only)
+ LED
+
+Setting one of the switches to Off means "1", On means "0".
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in SW2 are used to set the node ID. Each node attached
+to the network must have an unique node ID which must be different from 0.
+Switch 1 (ID0) serves as the least significant bit (LSB).
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Label | Value
+ -------|-------|-------
+ 1 | ID0 | 1
+ 2 | ID1 | 2
+ 3 | ID2 | 4
+ 4 | ID3 | 8
+ 5 | ID4 | 16
+ 6 | ID5 | 32
+ 7 | ID6 | 64
+ 8 | ID7 | 128
+
+Some Examples::
+
+ Switch | Hex | Decimal
+ 8 7 6 5 4 3 2 1 | Node ID | Node ID
+ ----------------|---------|---------
+ 0 0 0 0 0 0 0 0 | not allowed
+ 0 0 0 0 0 0 0 1 | 1 | 1
+ 0 0 0 0 0 0 1 0 | 2 | 2
+ 0 0 0 0 0 0 1 1 | 3 | 3
+ . . . | |
+ 0 1 0 1 0 1 0 1 | 55 | 85
+ . . . | |
+ 1 0 1 0 1 0 1 0 | AA | 170
+ . . . | |
+ 1 1 1 1 1 1 0 1 | FD | 253
+ 1 1 1 1 1 1 1 0 | FE | 254
+ 1 1 1 1 1 1 1 1 | FF | 255
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The first six switches in switch block SW1 are used to select the I/O Base
+address using the following table::
+
+ Switch | Hex I/O
+ 1 2 3 4 5 6 | Address
+ ------------------------|--------
+ OFF ON ON OFF OFF ON | 260
+ OFF ON OFF ON ON OFF | 290
+ OFF ON OFF OFF OFF ON | 2E0 (Manufacturer's default)
+ OFF ON OFF OFF OFF OFF | 2F0
+ OFF OFF ON ON ON ON | 300
+ OFF OFF ON OFF ON OFF | 350
+ OFF OFF OFF ON ON ON | 380
+ OFF OFF OFF OFF OFF ON | 3E0
+
+Note: Other IO-Base addresses seem to be selectable, but only the above
+ combinations are documented.
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The switches 7-10 of switch block SW1 are used to select the Memory
+Base address of the RAM (2K) and the PROM::
+
+ Switch | Hex RAM | Hex ROM
+ 7 8 9 10 | Address | Address
+ ----------------|---------|-----------
+ OFF OFF ON ON | C0000 | C8000
+ OFF OFF ON OFF | D0000 | D8000 (Default)
+ OFF OFF OFF ON | E0000 | E8000
+
+.. note::
+
+ Other MEM-Base addresses seem to be selectable, but only the above
+ combinations are documented.
+
+
+Setting the Interrupt Line
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+To select a hardware interrupt level install one (only one!) of the jumpers
+JP3 through JP13 using the following table::
+
+ Jumper | IRQ
+ -------|-----------------
+ 3 | 14
+ 4 | 15
+ 5 | 12
+ 6 | 11
+ 7 | 10
+ 8 | 3
+ 9 | 4
+ 10 | 5
+ 11 | 6
+ 12 | 7
+ 13 | 2 (=9) Default!
+
+.. note::
+
+ - Do not use JP11=IRQ6, it may conflict with your Floppy Disk
+ Controller
+ - Use JP3=IRQ14 only, if you don't have an IDE-, MFM-, or RLL-
+ Hard Disk, it may conflict with their controllers
+
+
+Setting the Timeout Parameters
+------------------------------
+
+The jumpers labeled JP1 and JP2 are used to determine the timeout
+parameters. These two jumpers are normally left open.
+
+
+Lantech
+=======
+
+8-bit card, unknown model
+-------------------------
+ - from Vlad Lungu <vlungu@ugal.ro> - his e-mail address seemed broken at
+ the time I tried to reach him. Sorry Vlad, if you didn't get my reply.
+
+::
+
+ ________________________________________________________________
+ | 1 8 |
+ | ___________ __|
+ | | SW1 | LED |__|
+ | |__________| |
+ | ___|
+ | _____________________ |S | 8
+ | | | |W |
+ | | | |2 |
+ | | | |__| 1
+ | | UM9065L | |o| JP4 ____|____
+ | | | |o| | CN |
+ | | | |________|
+ | | | |
+ | |___________________| |
+ | |
+ | |
+ | _____________ |
+ | | | |
+ | | PROM | |ooooo| JP6 |
+ | |____________| |ooooo| |
+ |_____________ _ _|
+ |____________________________________________| |__|
+
+
+UM9065L : ARCnet Controller
+
+SW 1 : Shared Memory Address and I/O Base
+
+::
+
+ ON=0
+
+ 12345|Memory Address
+ -----|--------------
+ 00001| D4000
+ 00010| CC000
+ 00110| D0000
+ 01110| D1000
+ 01101| D9000
+ 10010| CC800
+ 10011| DC800
+ 11110| D1800
+
+It seems that the bits are considered in reverse order. Also, you must
+observe that some of those addresses are unusual and I didn't probe them; I
+used a memory dump in DOS to identify them. For the 00000 configuration and
+some others that I didn't write here the card seems to conflict with the
+video card (an S3 GENDAC). I leave the full decoding of those addresses to
+you.
+
+::
+
+ 678| I/O Address
+ ---|------------
+ 000| 260
+ 001| failed probe
+ 010| 2E0
+ 011| 380
+ 100| 290
+ 101| 350
+ 110| failed probe
+ 111| 3E0
+
+ SW 2 : Node ID (binary coded)
+
+ JP 4 : Boot PROM enable CLOSE - enabled
+ OPEN - disabled
+
+ JP 6 : IRQ set (ONLY ONE jumper on 1-5 for IRQ 2-6)
+
+
+Acer
+====
+
+8-bit card, Model 5210-003
+--------------------------
+
+ - from Vojtech Pavlik <vojtech@suse.cz> using portions of the existing
+ arcnet-hardware file.
+
+This is a 90C26 based card. Its configuration seems similar to the SMC
+PC100, but has some additional jumpers I don't know the meaning of.
+
+::
+
+ __
+ | |
+ ___________|__|_________________________
+ | | | |
+ | | BNC | |
+ | |______| ___|
+ | _____________________ |___
+ | | | |
+ | | Hybrid IC | |
+ | | | o|o J1 |
+ | |_____________________| 8|8 |
+ | 8|8 J5 |
+ | o|o |
+ | 8|8 |
+ |__ 8|8 |
+ (|__| LED o|o |
+ | 8|8 |
+ | 8|8 J15 |
+ | |
+ | _____ |
+ | | | _____ |
+ | | | | | ___|
+ | | | | | |
+ | _____ | ROM | | UFS | |
+ | | | | | | | |
+ | | | ___ | | | | |
+ | | | | | |__.__| |__.__| |
+ | | NCR | |XTL| _____ _____ |
+ | | | |___| | | | | |
+ | |90C26| | | | | |
+ | | | | RAM | | UFS | |
+ | | | J17 o|o | | | | |
+ | | | J16 o|o | | | | |
+ | |__.__| |__.__| |__.__| |
+ | ___ |
+ | | |8 |
+ | |SW2| |
+ | | | |
+ | |___|1 |
+ | ___ |
+ | | |10 J18 o|o |
+ | | | o|o |
+ | |SW1| o|o |
+ | | | J21 o|o |
+ | |___|1 |
+ | |
+ |____________________________________|
+
+
+Legend::
+
+ 90C26 ARCNET Chip
+ XTL 20 MHz Crystal
+ SW1 1-6 Base I/O Address Select
+ 7-10 Memory Address Select
+ SW2 1-8 Node ID Select (ID0-ID7)
+ J1-J5 IRQ Select
+ J6-J21 Unknown (Probably extra timeouts & ROM enable ...)
+ LED1 Activity LED
+ BNC Coax connector (STAR ARCnet)
+ RAM 2k of SRAM
+ ROM Boot ROM socket
+ UFS Unidentified Flying Sockets
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in SW2 are used to set the node ID. Each node attached
+to the network must have an unique node ID which must not be 0.
+Switch 1 (ID0) serves as the least significant bit (LSB).
+
+Setting one of the switches to OFF means "1", ON means "0".
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Value
+ -------|-------
+ 1 | 1
+ 2 | 2
+ 3 | 4
+ 4 | 8
+ 5 | 16
+ 6 | 32
+ 7 | 64
+ 8 | 128
+
+Don't set this to 0 or 255; these values are reserved.
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The switches 1 to 6 of switch block SW1 are used to select one
+of 32 possible I/O Base addresses using the following tables::
+
+ | Hex
+ Switch | Value
+ -------|-------
+ 1 | 200
+ 2 | 100
+ 3 | 80
+ 4 | 40
+ 5 | 20
+ 6 | 10
+
+The I/O address is sum of all switches set to "1". Remember that
+the I/O address space bellow 0x200 is RESERVED for mainboard, so
+switch 1 should be ALWAYS SET TO OFF.
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer (RAM) requires 2K. The base of this buffer can be
+located in any of sixteen positions. However, the addresses below
+A0000 are likely to cause system hang because there's main RAM.
+
+Jumpers 7-10 of switch block SW1 select the Memory Base address::
+
+ Switch | Hex RAM
+ 7 8 9 10 | Address
+ ----------------|---------
+ OFF OFF OFF OFF | F0000 (conflicts with main BIOS)
+ OFF OFF OFF ON | E0000
+ OFF OFF ON OFF | D0000
+ OFF OFF ON ON | C0000 (conflicts with video BIOS)
+ OFF ON OFF OFF | B0000 (conflicts with mono video)
+ OFF ON OFF ON | A0000 (conflicts with graphics)
+
+
+Setting the Interrupt Line
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Jumpers 1-5 of the jumper block J1 control the IRQ level. ON means
+shorted, OFF means open::
+
+ Jumper | IRQ
+ 1 2 3 4 5 |
+ ----------------------------
+ ON OFF OFF OFF OFF | 7
+ OFF ON OFF OFF OFF | 5
+ OFF OFF ON OFF OFF | 4
+ OFF OFF OFF ON OFF | 3
+ OFF OFF OFF OFF ON | 2
+
+
+Unknown jumpers & sockets
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+I know nothing about these. I just guess that J16&J17 are timeout
+jumpers and maybe one of J18-J21 selects ROM. Also J6-J10 and
+J11-J15 are connecting IRQ2-7 to some pins on the UFSs. I can't
+guess the purpose.
+
+Datapoint?
+==========
+
+LAN-ARC-8, an 8-bit card
+------------------------
+
+ - from Vojtech Pavlik <vojtech@suse.cz>
+
+This is another SMC 90C65-based ARCnet card. I couldn't identify the
+manufacturer, but it might be DataPoint, because the card has the
+original arcNet logo in its upper right corner.
+
+::
+
+ _______________________________________________________
+ | _________ |
+ | | SW2 | ON arcNet |
+ | |_________| OFF ___|
+ | _____________ 1 ______ 8 | | 8
+ | | | SW1 | XTAL | ____________ | S |
+ | > RAM (2k) | |______|| | | W |
+ | |_____________| | H | | 3 |
+ | _________|_____ y | |___| 1
+ | _________ | | |b | |
+ | |_________| | | |r | |
+ | | SMC | |i | |
+ | | 90C65| |d | |
+ | _________ | | | | |
+ | | SW1 | ON | | |I | |
+ | |_________| OFF |_________|_____/C | _____|
+ | 1 8 | | | |___
+ | ______________ | | | BNC |___|
+ | | | |____________| |_____|
+ | > EPROM SOCKET | _____________ |
+ | |______________| |_____________| |
+ | ______________|
+ | |
+ |________________________________________|
+
+Legend::
+
+ 90C65 ARCNET Chip
+ SW1 1-5: Base Memory Address Select
+ 6-8: Base I/O Address Select
+ SW2 1-8: Node ID Select
+ SW3 1-5: IRQ Select
+ 6-7: Extra Timeout
+ 8 : ROM Enable
+ BNC Coax connector
+ XTAL 20 MHz Crystal
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in SW3 are used to set the node ID. Each node attached
+to the network must have an unique node ID which must not be 0.
+Switch 1 serves as the least significant bit (LSB).
+
+Setting one of the switches to Off means "1", On means "0".
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Value
+ -------|-------
+ 1 | 1
+ 2 | 2
+ 3 | 4
+ 4 | 8
+ 5 | 16
+ 6 | 32
+ 7 | 64
+ 8 | 128
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The last three switches in switch block SW1 are used to select one
+of eight possible I/O Base addresses using the following table::
+
+
+ Switch | Hex I/O
+ 6 7 8 | Address
+ ------------|--------
+ ON ON ON | 260
+ OFF ON ON | 290
+ ON OFF ON | 2E0 (Manufacturer's default)
+ OFF OFF ON | 2F0
+ ON ON OFF | 300
+ OFF ON OFF | 350
+ ON OFF OFF | 380
+ OFF OFF OFF | 3E0
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer (RAM) requires 2K. The base of this buffer can be
+located in any of eight positions. The address of the Boot Prom is
+memory base + 0x2000.
+
+Jumpers 3-5 of switch block SW1 select the Memory Base address.
+
+::
+
+ Switch | Hex RAM | Hex ROM
+ 1 2 3 4 5 | Address | Address *)
+ --------------------|---------|-----------
+ ON ON ON ON ON | C0000 | C2000
+ ON ON OFF ON ON | C4000 | C6000
+ ON ON ON OFF ON | CC000 | CE000
+ ON ON OFF OFF ON | D0000 | D2000 (Manufacturer's default)
+ ON ON ON ON OFF | D4000 | D6000
+ ON ON OFF ON OFF | D8000 | DA000
+ ON ON ON OFF OFF | DC000 | DE000
+ ON ON OFF OFF OFF | E0000 | E2000
+
+ *) To enable the Boot ROM set the switch 8 of switch block SW3 to position ON.
+
+The switches 1 and 2 probably add 0x0800 and 0x1000 to RAM base address.
+
+
+Setting the Interrupt Line
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Switches 1-5 of the switch block SW3 control the IRQ level::
+
+ Jumper | IRQ
+ 1 2 3 4 5 |
+ ----------------------------
+ ON OFF OFF OFF OFF | 3
+ OFF ON OFF OFF OFF | 4
+ OFF OFF ON OFF OFF | 5
+ OFF OFF OFF ON OFF | 7
+ OFF OFF OFF OFF ON | 2
+
+
+Setting the Timeout Parameters
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The switches 6-7 of the switch block SW3 are used to determine the timeout
+parameters. These two switches are normally left in the OFF position.
+
+
+Topware
+=======
+
+8-bit card, TA-ARC/10
+---------------------
+
+ - from Vojtech Pavlik <vojtech@suse.cz>
+
+This is another very similar 90C65 card. Most of the switches and jumpers
+are the same as on other clones.
+
+::
+
+ _____________________________________________________________________
+ | ___________ | | ______ |
+ | |SW2 NODE ID| | | | XTAL | |
+ | |___________| | Hybrid IC | |______| |
+ | ___________ | | __|
+ | |SW1 MEM+I/O| |_________________________| LED1|__|)
+ | |___________| 1 2 |
+ | J3 |o|o| TIMEOUT ______|
+ | ______________ |o|o| | |
+ | | | ___________________ | RJ |
+ | > EPROM SOCKET | | \ |------|
+ |J2 |______________| | | | |
+ ||o| | | |______|
+ ||o| ROM ENABLE | SMC | _________ |
+ | _____________ | 90C65 | |_________| _____|
+ | | | | | | |___
+ | > RAM (2k) | | | | BNC |___|
+ | |_____________| | | |_____|
+ | |____________________| |
+ | ________ IRQ 2 3 4 5 7 ___________ |
+ ||________| |o|o|o|o|o| |___________| |
+ |________ J1|o|o|o|o|o| ______________|
+ | |
+ |_____________________________________________|
+
+Legend::
+
+ 90C65 ARCNET Chip
+ XTAL 20 MHz Crystal
+ SW1 1-5 Base Memory Address Select
+ 6-8 Base I/O Address Select
+ SW2 1-8 Node ID Select (ID0-ID7)
+ J1 IRQ Select
+ J2 ROM Enable
+ J3 Extra Timeout
+ LED1 Activity LED
+ BNC Coax connector (BUS ARCnet)
+ RJ Twisted Pair Connector (daisy chain)
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in SW2 are used to set the node ID. Each node attached to
+the network must have an unique node ID which must not be 0. Switch 1 (ID0)
+serves as the least significant bit (LSB).
+
+Setting one of the switches to Off means "1", On means "0".
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Label | Value
+ -------|-------|-------
+ 1 | ID0 | 1
+ 2 | ID1 | 2
+ 3 | ID2 | 4
+ 4 | ID3 | 8
+ 5 | ID4 | 16
+ 6 | ID5 | 32
+ 7 | ID6 | 64
+ 8 | ID7 | 128
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The last three switches in switch block SW1 are used to select one
+of eight possible I/O Base addresses using the following table::
+
+
+ Switch | Hex I/O
+ 6 7 8 | Address
+ ------------|--------
+ ON ON ON | 260 (Manufacturer's default)
+ OFF ON ON | 290
+ ON OFF ON | 2E0
+ OFF OFF ON | 2F0
+ ON ON OFF | 300
+ OFF ON OFF | 350
+ ON OFF OFF | 380
+ OFF OFF OFF | 3E0
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer (RAM) requires 2K. The base of this buffer can be
+located in any of eight positions. The address of the Boot Prom is
+memory base + 0x2000.
+
+Jumpers 3-5 of switch block SW1 select the Memory Base address.
+
+::
+
+ Switch | Hex RAM | Hex ROM
+ 1 2 3 4 5 | Address | Address *)
+ --------------------|---------|-----------
+ ON ON ON ON ON | C0000 | C2000
+ ON ON OFF ON ON | C4000 | C6000 (Manufacturer's default)
+ ON ON ON OFF ON | CC000 | CE000
+ ON ON OFF OFF ON | D0000 | D2000
+ ON ON ON ON OFF | D4000 | D6000
+ ON ON OFF ON OFF | D8000 | DA000
+ ON ON ON OFF OFF | DC000 | DE000
+ ON ON OFF OFF OFF | E0000 | E2000
+
+ *) To enable the Boot ROM short the jumper J2.
+
+The jumpers 1 and 2 probably add 0x0800 and 0x1000 to RAM address.
+
+
+Setting the Interrupt Line
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Jumpers 1-5 of the jumper block J1 control the IRQ level. ON means
+shorted, OFF means open::
+
+ Jumper | IRQ
+ 1 2 3 4 5 |
+ ----------------------------
+ ON OFF OFF OFF OFF | 2
+ OFF ON OFF OFF OFF | 3
+ OFF OFF ON OFF OFF | 4
+ OFF OFF OFF ON OFF | 5
+ OFF OFF OFF OFF ON | 7
+
+
+Setting the Timeout Parameters
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The jumpers J3 are used to set the timeout parameters. These two
+jumpers are normally left open.
+
+Thomas-Conrad
+=============
+
+Model #500-6242-0097 REV A (8-bit card)
+---------------------------------------
+
+ - from Lars Karlsson <100617.3473@compuserve.com>
+
+::
+
+ ________________________________________________________
+ | ________ ________ |_____
+ | |........| |........| |
+ | |________| |________| ___|
+ | SW 3 SW 1 | |
+ | Base I/O Base Addr. Station | |
+ | address | |
+ | ______ switch | |
+ | | | | |
+ | | | |___|
+ | | | ______ |___._
+ | |______| |______| ____| BNC
+ | Jumper- _____| Connector
+ | Main chip block _ __| '
+ | | | | RJ Connector
+ | |_| | with 110 Ohm
+ | |__ Terminator
+ | ___________ __|
+ | |...........| | RJ-jack
+ | |...........| _____ | (unused)
+ | |___________| |_____| |__
+ | Boot PROM socket IRQ-jumpers |_ Diagnostic
+ |________ __ _| LED (red)
+ | | | | | | | | | | | | | | | | | | | | | |
+ | | | | | | | | | | | | | | | | | | | | |________|
+ |
+ |
+
+And here are the settings for some of the switches and jumpers on the cards.
+
+::
+
+ I/O
+
+ 1 2 3 4 5 6 7 8
+
+ 2E0----- 0 0 0 1 0 0 0 1
+ 2F0----- 0 0 0 1 0 0 0 0
+ 300----- 0 0 0 0 1 1 1 1
+ 350----- 0 0 0 0 1 1 1 0
+
+"0" in the above example means switch is off "1" means that it is on.
+
+::
+
+ ShMem address.
+
+ 1 2 3 4 5 6 7 8
+
+ CX00--0 0 1 1 | | |
+ DX00--0 0 1 0 |
+ X000--------- 1 1 |
+ X400--------- 1 0 |
+ X800--------- 0 1 |
+ XC00--------- 0 0
+ ENHANCED----------- 1
+ COMPATIBLE--------- 0
+
+::
+
+ IRQ
+
+
+ 3 4 5 7 2
+ . . . . .
+ . . . . .
+
+
+There is a DIP-switch with 8 switches, used to set the shared memory address
+to be used. The first 6 switches set the address, the 7th doesn't have any
+function, and the 8th switch is used to select "compatible" or "enhanced".
+When I got my two cards, one of them had this switch set to "enhanced". That
+card didn't work at all, it wasn't even recognized by the driver. The other
+card had this switch set to "compatible" and it behaved absolutely normally. I
+guess that the switch on one of the cards, must have been changed accidentally
+when the card was taken out of its former host. The question remains
+unanswered, what is the purpose of the "enhanced" position?
+
+[Avery's note: "enhanced" probably either disables shared memory (use IO
+ports instead) or disables IO ports (use memory addresses instead). This
+varies by the type of card involved. I fail to see how either of these
+enhance anything. Send me more detailed information about this mode, or
+just use "compatible" mode instead.]
+
+Waterloo Microsystems Inc. ??
+=============================
+
+8-bit card (C) 1985
+-------------------
+ - from Robert Michael Best <rmb117@cs.usask.ca>
+
+[Avery's note: these don't work with my driver for some reason. These cards
+SEEM to have settings similar to the PDI508Plus, which is
+software-configured and doesn't work with my driver either. The "Waterloo
+chip" is a boot PROM, probably designed specifically for the University of
+Waterloo. If you have any further information about this card, please
+e-mail me.]
+
+The probe has not been able to detect the card on any of the J2 settings,
+and I tried them again with the "Waterloo" chip removed.
+
+::
+
+ _____________________________________________________________________
+ | \/ \/ ___ __ __ |
+ | C4 C4 |^| | M || ^ ||^| |
+ | -- -- |_| | 5 || || | C3 |
+ | \/ \/ C10 |___|| ||_| |
+ | C4 C4 _ _ | | ?? |
+ | -- -- | \/ || | |
+ | | || | |
+ | | || C1 | |
+ | | || | \/ _____|
+ | | C6 || | C9 | |___
+ | | || | -- | BNC |___|
+ | | || | >C7| |_____|
+ | | || | |
+ | __ __ |____||_____| 1 2 3 6 |
+ || ^ | >C4| |o|o|o|o|o|o| J2 >C4| |
+ || | |o|o|o|o|o|o| |
+ || C2 | >C4| >C4| |
+ || | >C8| |
+ || | 2 3 4 5 6 7 IRQ >C4| |
+ ||_____| |o|o|o|o|o|o| J3 |
+ |_______ |o|o|o|o|o|o| _______________|
+ | |
+ |_____________________________________________|
+
+ C1 -- "COM9026
+ SMC 8638"
+ In a chip socket.
+
+ C2 -- "@Copyright
+ Waterloo Microsystems Inc.
+ 1985"
+ In a chip Socket with info printed on a label covering a round window
+ showing the circuit inside. (The window indicates it is an EPROM chip.)
+
+ C3 -- "COM9032
+ SMC 8643"
+ In a chip socket.
+
+ C4 -- "74LS"
+ 9 total no sockets.
+
+ M5 -- "50006-136
+ 20.000000 MHZ
+ MTQ-T1-S3
+ 0 M-TRON 86-40"
+ Metallic case with 4 pins, no socket.
+
+ C6 -- "MOSTEK@TC8643
+ MK6116N-20
+ MALAYSIA"
+ No socket.
+
+ C7 -- No stamp or label but in a 20 pin chip socket.
+
+ C8 -- "PAL10L8CN
+ 8623"
+ In a 20 pin socket.
+
+ C9 -- "PAl16R4A-2CN
+ 8641"
+ In a 20 pin socket.
+
+ C10 -- "M8640
+ NMC
+ 9306N"
+ In an 8 pin socket.
+
+ ?? -- Some components on a smaller board and attached with 20 pins all
+ along the side closest to the BNC connector. The are coated in a dark
+ resin.
+
+On the board there are two jumper banks labeled J2 and J3. The
+manufacturer didn't put a J1 on the board. The two boards I have both
+came with a jumper box for each bank.
+
+::
+
+ J2 -- Numbered 1 2 3 4 5 6.
+ 4 and 5 are not stamped due to solder points.
+
+ J3 -- IRQ 2 3 4 5 6 7
+
+The board itself has a maple leaf stamped just above the irq jumpers
+and "-2 46-86" beside C2. Between C1 and C6 "ASS 'Y 300163" and "@1986
+CORMAN CUSTOM ELECTRONICS CORP." stamped just below the BNC connector.
+Below that "MADE IN CANADA"
+
+No Name
+=======
+
+8-bit cards, 16-bit cards
+-------------------------
+
+ - from Juergen Seifert <seifert@htwm.de>
+
+I have named this ARCnet card "NONAME", since there is no name of any
+manufacturer on the Installation manual nor on the shipping box. The only
+hint to the existence of a manufacturer at all is written in copper,
+it is "Made in Taiwan"
+
+This description has been written by Juergen Seifert <seifert@htwm.de>
+using information from the Original
+
+ "ARCnet Installation Manual"
+
+::
+
+ ________________________________________________________________
+ | |STAR| BUS| T/P| |
+ | |____|____|____| |
+ | _____________________ |
+ | | | |
+ | | | |
+ | | | |
+ | | SMC | |
+ | | | |
+ | | COM90C65 | |
+ | | | |
+ | | | |
+ | |__________-__________| |
+ | _____|
+ | _______________ | CN |
+ | | PROM | |_____|
+ | > SOCKET | |
+ | |_______________| 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 |
+ | _______________ _______________ |
+ | |o|o|o|o|o|o|o|o| | SW1 || SW2 ||
+ | |o|o|o|o|o|o|o|o| |_______________||_______________||
+ |___ 2 3 4 5 7 E E R Node ID IOB__|__MEM____|
+ | \ IRQ / T T O |
+ |__________________1_2_M______________________|
+
+Legend::
+
+ COM90C65: ARCnet Probe
+ S1 1-8: Node ID Select
+ S2 1-3: I/O Base Address Select
+ 4-6: Memory Base Address Select
+ 7-8: RAM Offset Select
+ ET1, ET2 Extended Timeout Select
+ ROM ROM Enable Select
+ CN RG62 Coax Connector
+ STAR| BUS | T/P Three fields for placing a sign (colored circle)
+ indicating the topology of the card
+
+Setting one of the switches to Off means "1", On means "0".
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in group SW1 are used to set the node ID.
+Each node attached to the network must have an unique node ID which
+must be different from 0.
+Switch 8 serves as the least significant bit (LSB).
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Value
+ -------|-------
+ 8 | 1
+ 7 | 2
+ 6 | 4
+ 5 | 8
+ 4 | 16
+ 3 | 32
+ 2 | 64
+ 1 | 128
+
+Some Examples::
+
+ Switch | Hex | Decimal
+ 1 2 3 4 5 6 7 8 | Node ID | Node ID
+ ----------------|---------|---------
+ 0 0 0 0 0 0 0 0 | not allowed
+ 0 0 0 0 0 0 0 1 | 1 | 1
+ 0 0 0 0 0 0 1 0 | 2 | 2
+ 0 0 0 0 0 0 1 1 | 3 | 3
+ . . . | |
+ 0 1 0 1 0 1 0 1 | 55 | 85
+ . . . | |
+ 1 0 1 0 1 0 1 0 | AA | 170
+ . . . | |
+ 1 1 1 1 1 1 0 1 | FD | 253
+ 1 1 1 1 1 1 1 0 | FE | 254
+ 1 1 1 1 1 1 1 1 | FF | 255
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The first three switches in switch group SW2 are used to select one
+of eight possible I/O Base addresses using the following table::
+
+ Switch | Hex I/O
+ 1 2 3 | Address
+ ------------|--------
+ ON ON ON | 260
+ ON ON OFF | 290
+ ON OFF ON | 2E0 (Manufacturer's default)
+ ON OFF OFF | 2F0
+ OFF ON ON | 300
+ OFF ON OFF | 350
+ OFF OFF ON | 380
+ OFF OFF OFF | 3E0
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer requires 2K of a 16K block of RAM. The base of this
+16K block can be located in any of eight positions.
+Switches 4-6 of switch group SW2 select the Base of the 16K block.
+Within that 16K address space, the buffer may be assigned any one of four
+positions, determined by the offset, switches 7 and 8 of group SW2.
+
+::
+
+ Switch | Hex RAM | Hex ROM
+ 4 5 6 7 8 | Address | Address *)
+ -----------|---------|-----------
+ 0 0 0 0 0 | C0000 | C2000
+ 0 0 0 0 1 | C0800 | C2000
+ 0 0 0 1 0 | C1000 | C2000
+ 0 0 0 1 1 | C1800 | C2000
+ | |
+ 0 0 1 0 0 | C4000 | C6000
+ 0 0 1 0 1 | C4800 | C6000
+ 0 0 1 1 0 | C5000 | C6000
+ 0 0 1 1 1 | C5800 | C6000
+ | |
+ 0 1 0 0 0 | CC000 | CE000
+ 0 1 0 0 1 | CC800 | CE000
+ 0 1 0 1 0 | CD000 | CE000
+ 0 1 0 1 1 | CD800 | CE000
+ | |
+ 0 1 1 0 0 | D0000 | D2000 (Manufacturer's default)
+ 0 1 1 0 1 | D0800 | D2000
+ 0 1 1 1 0 | D1000 | D2000
+ 0 1 1 1 1 | D1800 | D2000
+ | |
+ 1 0 0 0 0 | D4000 | D6000
+ 1 0 0 0 1 | D4800 | D6000
+ 1 0 0 1 0 | D5000 | D6000
+ 1 0 0 1 1 | D5800 | D6000
+ | |
+ 1 0 1 0 0 | D8000 | DA000
+ 1 0 1 0 1 | D8800 | DA000
+ 1 0 1 1 0 | D9000 | DA000
+ 1 0 1 1 1 | D9800 | DA000
+ | |
+ 1 1 0 0 0 | DC000 | DE000
+ 1 1 0 0 1 | DC800 | DE000
+ 1 1 0 1 0 | DD000 | DE000
+ 1 1 0 1 1 | DD800 | DE000
+ | |
+ 1 1 1 0 0 | E0000 | E2000
+ 1 1 1 0 1 | E0800 | E2000
+ 1 1 1 1 0 | E1000 | E2000
+ 1 1 1 1 1 | E1800 | E2000
+
+ *) To enable the 8K Boot PROM install the jumper ROM.
+ The default is jumper ROM not installed.
+
+
+Setting Interrupt Request Lines (IRQ)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+To select a hardware interrupt level set one (only one!) of the jumpers
+IRQ2, IRQ3, IRQ4, IRQ5 or IRQ7. The manufacturer's default is IRQ2.
+
+
+Setting the Timeouts
+^^^^^^^^^^^^^^^^^^^^
+
+The two jumpers labeled ET1 and ET2 are used to determine the timeout
+parameters (response and reconfiguration time). Every node in a network
+must be set to the same timeout values.
+
+::
+
+ ET1 ET2 | Response Time (us) | Reconfiguration Time (ms)
+ --------|--------------------|--------------------------
+ Off Off | 78 | 840 (Default)
+ Off On | 285 | 1680
+ On Off | 563 | 1680
+ On On | 1130 | 1680
+
+On means jumper installed, Off means jumper not installed
+
+
+16-BIT ARCNET
+-------------
+
+The manual of my 8-Bit NONAME ARCnet Card contains another description
+of a 16-Bit Coax / Twisted Pair Card. This description is incomplete,
+because there are missing two pages in the manual booklet. (The table
+of contents reports pages ... 2-9, 2-11, 2-12, 3-1, ... but inside
+the booklet there is a different way of counting ... 2-9, 2-10, A-1,
+(empty page), 3-1, ..., 3-18, A-1 (again), A-2)
+Also the picture of the board layout is not as good as the picture of
+8-Bit card, because there isn't any letter like "SW1" written to the
+picture.
+
+Should somebody have such a board, please feel free to complete this
+description or to send a mail to me!
+
+This description has been written by Juergen Seifert <seifert@htwm.de>
+using information from the Original
+
+ "ARCnet Installation Manual"
+
+::
+
+ ___________________________________________________________________
+ < _________________ _________________ |
+ > | SW? || SW? | |
+ < |_________________||_________________| |
+ > ____________________ |
+ < | | |
+ > | | |
+ < | | |
+ > | | |
+ < | | |
+ > | | |
+ < | | |
+ > |____________________| |
+ < ____|
+ > ____________________ | |
+ < | | | J1 |
+ > | < | |
+ < |____________________| ? ? ? ? ? ? |____|
+ > |o|o|o|o|o|o| |
+ < |o|o|o|o|o|o| |
+ > |
+ < __ ___________|
+ > | | |
+ <____________| |_______________________________________|
+
+
+Setting one of the switches to Off means "1", On means "0".
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in group SW2 are used to set the node ID.
+Each node attached to the network must have an unique node ID which
+must be different from 0.
+Switch 8 serves as the least significant bit (LSB).
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Value
+ -------|-------
+ 8 | 1
+ 7 | 2
+ 6 | 4
+ 5 | 8
+ 4 | 16
+ 3 | 32
+ 2 | 64
+ 1 | 128
+
+Some Examples::
+
+ Switch | Hex | Decimal
+ 1 2 3 4 5 6 7 8 | Node ID | Node ID
+ ----------------|---------|---------
+ 0 0 0 0 0 0 0 0 | not allowed
+ 0 0 0 0 0 0 0 1 | 1 | 1
+ 0 0 0 0 0 0 1 0 | 2 | 2
+ 0 0 0 0 0 0 1 1 | 3 | 3
+ . . . | |
+ 0 1 0 1 0 1 0 1 | 55 | 85
+ . . . | |
+ 1 0 1 0 1 0 1 0 | AA | 170
+ . . . | |
+ 1 1 1 1 1 1 0 1 | FD | 253
+ 1 1 1 1 1 1 1 0 | FE | 254
+ 1 1 1 1 1 1 1 1 | FF | 255
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The first three switches in switch group SW1 are used to select one
+of eight possible I/O Base addresses using the following table::
+
+ Switch | Hex I/O
+ 3 2 1 | Address
+ ------------|--------
+ ON ON ON | 260
+ ON ON OFF | 290
+ ON OFF ON | 2E0 (Manufacturer's default)
+ ON OFF OFF | 2F0
+ OFF ON ON | 300
+ OFF ON OFF | 350
+ OFF OFF ON | 380
+ OFF OFF OFF | 3E0
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer requires 2K of a 16K block of RAM. The base of this
+16K block can be located in any of eight positions.
+Switches 6-8 of switch group SW1 select the Base of the 16K block.
+Within that 16K address space, the buffer may be assigned any one of four
+positions, determined by the offset, switches 4 and 5 of group SW1::
+
+ Switch | Hex RAM | Hex ROM
+ 8 7 6 5 4 | Address | Address
+ -----------|---------|-----------
+ 0 0 0 0 0 | C0000 | C2000
+ 0 0 0 0 1 | C0800 | C2000
+ 0 0 0 1 0 | C1000 | C2000
+ 0 0 0 1 1 | C1800 | C2000
+ | |
+ 0 0 1 0 0 | C4000 | C6000
+ 0 0 1 0 1 | C4800 | C6000
+ 0 0 1 1 0 | C5000 | C6000
+ 0 0 1 1 1 | C5800 | C6000
+ | |
+ 0 1 0 0 0 | CC000 | CE000
+ 0 1 0 0 1 | CC800 | CE000
+ 0 1 0 1 0 | CD000 | CE000
+ 0 1 0 1 1 | CD800 | CE000
+ | |
+ 0 1 1 0 0 | D0000 | D2000 (Manufacturer's default)
+ 0 1 1 0 1 | D0800 | D2000
+ 0 1 1 1 0 | D1000 | D2000
+ 0 1 1 1 1 | D1800 | D2000
+ | |
+ 1 0 0 0 0 | D4000 | D6000
+ 1 0 0 0 1 | D4800 | D6000
+ 1 0 0 1 0 | D5000 | D6000
+ 1 0 0 1 1 | D5800 | D6000
+ | |
+ 1 0 1 0 0 | D8000 | DA000
+ 1 0 1 0 1 | D8800 | DA000
+ 1 0 1 1 0 | D9000 | DA000
+ 1 0 1 1 1 | D9800 | DA000
+ | |
+ 1 1 0 0 0 | DC000 | DE000
+ 1 1 0 0 1 | DC800 | DE000
+ 1 1 0 1 0 | DD000 | DE000
+ 1 1 0 1 1 | DD800 | DE000
+ | |
+ 1 1 1 0 0 | E0000 | E2000
+ 1 1 1 0 1 | E0800 | E2000
+ 1 1 1 1 0 | E1000 | E2000
+ 1 1 1 1 1 | E1800 | E2000
+
+
+Setting Interrupt Request Lines (IRQ)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+??????????????????????????????????????
+
+
+Setting the Timeouts
+^^^^^^^^^^^^^^^^^^^^
+
+??????????????????????????????????????
+
+
+8-bit cards ("Made in Taiwan R.O.C.")
+-------------------------------------
+
+ - from Vojtech Pavlik <vojtech@suse.cz>
+
+I have named this ARCnet card "NONAME", since I got only the card with
+no manual at all and the only text identifying the manufacturer is
+"MADE IN TAIWAN R.O.C" printed on the card.
+
+::
+
+ ____________________________________________________________
+ | 1 2 3 4 5 6 7 8 |
+ | |o|o| JP1 o|o|o|o|o|o|o|o| ON |
+ | + o|o|o|o|o|o|o|o| ___|
+ | _____________ o|o|o|o|o|o|o|o| OFF _____ | | ID7
+ | | | SW1 | | | | ID6
+ | > RAM (2k) | ____________________ | H | | S | ID5
+ | |_____________| | || y | | W | ID4
+ | | || b | | 2 | ID3
+ | | || r | | | ID2
+ | | || i | | | ID1
+ | | 90C65 || d | |___| ID0
+ | SW3 | || | |
+ | |o|o|o|o|o|o|o|o| ON | || I | |
+ | |o|o|o|o|o|o|o|o| | || C | |
+ | |o|o|o|o|o|o|o|o| OFF |____________________|| | _____|
+ | 1 2 3 4 5 6 7 8 | | | |___
+ | ______________ | | | BNC |___|
+ | | | |_____| |_____|
+ | > EPROM SOCKET | |
+ | |______________| |
+ | ______________|
+ | |
+ |_____________________________________________|
+
+Legend::
+
+ 90C65 ARCNET Chip
+ SW1 1-5: Base Memory Address Select
+ 6-8: Base I/O Address Select
+ SW2 1-8: Node ID Select (ID0-ID7)
+ SW3 1-5: IRQ Select
+ 6-7: Extra Timeout
+ 8 : ROM Enable
+ JP1 Led connector
+ BNC Coax connector
+
+Although the jumpers SW1 and SW3 are marked SW, not JP, they are jumpers, not
+switches.
+
+Setting the jumpers to ON means connecting the upper two pins, off the bottom
+two - or - in case of IRQ setting, connecting none of them at all.
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in SW2 are used to set the node ID. Each node attached
+to the network must have an unique node ID which must not be 0.
+Switch 1 (ID0) serves as the least significant bit (LSB).
+
+Setting one of the switches to Off means "1", On means "0".
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Label | Value
+ -------|-------|-------
+ 1 | ID0 | 1
+ 2 | ID1 | 2
+ 3 | ID2 | 4
+ 4 | ID3 | 8
+ 5 | ID4 | 16
+ 6 | ID5 | 32
+ 7 | ID6 | 64
+ 8 | ID7 | 128
+
+Some Examples::
+
+ Switch | Hex | Decimal
+ 8 7 6 5 4 3 2 1 | Node ID | Node ID
+ ----------------|---------|---------
+ 0 0 0 0 0 0 0 0 | not allowed
+ 0 0 0 0 0 0 0 1 | 1 | 1
+ 0 0 0 0 0 0 1 0 | 2 | 2
+ 0 0 0 0 0 0 1 1 | 3 | 3
+ . . . | |
+ 0 1 0 1 0 1 0 1 | 55 | 85
+ . . . | |
+ 1 0 1 0 1 0 1 0 | AA | 170
+ . . . | |
+ 1 1 1 1 1 1 0 1 | FD | 253
+ 1 1 1 1 1 1 1 0 | FE | 254
+ 1 1 1 1 1 1 1 1 | FF | 255
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The last three switches in switch block SW1 are used to select one
+of eight possible I/O Base addresses using the following table::
+
+
+ Switch | Hex I/O
+ 6 7 8 | Address
+ ------------|--------
+ ON ON ON | 260
+ OFF ON ON | 290
+ ON OFF ON | 2E0 (Manufacturer's default)
+ OFF OFF ON | 2F0
+ ON ON OFF | 300
+ OFF ON OFF | 350
+ ON OFF OFF | 380
+ OFF OFF OFF | 3E0
+
+
+Setting the Base Memory (RAM) buffer Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer (RAM) requires 2K. The base of this buffer can be
+located in any of eight positions. The address of the Boot Prom is
+memory base + 0x2000.
+
+Jumpers 3-5 of jumper block SW1 select the Memory Base address.
+
+::
+
+ Switch | Hex RAM | Hex ROM
+ 1 2 3 4 5 | Address | Address *)
+ --------------------|---------|-----------
+ ON ON ON ON ON | C0000 | C2000
+ ON ON OFF ON ON | C4000 | C6000
+ ON ON ON OFF ON | CC000 | CE000
+ ON ON OFF OFF ON | D0000 | D2000 (Manufacturer's default)
+ ON ON ON ON OFF | D4000 | D6000
+ ON ON OFF ON OFF | D8000 | DA000
+ ON ON ON OFF OFF | DC000 | DE000
+ ON ON OFF OFF OFF | E0000 | E2000
+
+ *) To enable the Boot ROM set the jumper 8 of jumper block SW3 to position ON.
+
+The jumpers 1 and 2 probably add 0x0800, 0x1000 and 0x1800 to RAM adders.
+
+Setting the Interrupt Line
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Jumpers 1-5 of the jumper block SW3 control the IRQ level::
+
+ Jumper | IRQ
+ 1 2 3 4 5 |
+ ----------------------------
+ ON OFF OFF OFF OFF | 2
+ OFF ON OFF OFF OFF | 3
+ OFF OFF ON OFF OFF | 4
+ OFF OFF OFF ON OFF | 5
+ OFF OFF OFF OFF ON | 7
+
+
+Setting the Timeout Parameters
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The jumpers 6-7 of the jumper block SW3 are used to determine the timeout
+parameters. These two jumpers are normally left in the OFF position.
+
+
+
+(Generic Model 9058)
+--------------------
+ - from Andrew J. Kroll <ag784@freenet.buffalo.edu>
+ - Sorry this sat in my to-do box for so long, Andrew! (yikes - over a
+ year!)
+
+::
+
+ _____
+ | <
+ | .---'
+ ________________________________________________________________ | |
+ | | SW2 | | |
+ | ___________ |_____________| | |
+ | | | 1 2 3 4 5 6 ___| |
+ | > 6116 RAM | _________ 8 | | |
+ | |___________| |20MHzXtal| 7 | | |
+ | |_________| __________ 6 | S | |
+ | 74LS373 | |- 5 | W | |
+ | _________ | E |- 4 | | |
+ | >_______| ______________|..... P |- 3 | 3 | |
+ | | | : O |- 2 | | |
+ | | | : X |- 1 |___| |
+ | ________________ | | : Y |- | |
+ | | SW1 | | SL90C65 | : |- | |
+ | |________________| | | : B |- | |
+ | 1 2 3 4 5 6 7 8 | | : O |- | |
+ | |_________o____|..../ A |- _______| |
+ | ____________________ | R |- | |------,
+ | | | | D |- | BNC | # |
+ | > 2764 PROM SOCKET | |__________|- |_______|------'
+ | |____________________| _________ | |
+ | >________| <- 74LS245 | |
+ | | |
+ |___ ______________| |
+ |H H H H H H H H H H H H H H H H H H H H H H H| | |
+ |U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U| | |
+ \|
+
+Legend::
+
+ SL90C65 ARCNET Controller / Transceiver /Logic
+ SW1 1-5: IRQ Select
+ 6: ET1
+ 7: ET2
+ 8: ROM ENABLE
+ SW2 1-3: Memory Buffer/PROM Address
+ 3-6: I/O Address Map
+ SW3 1-8: Node ID Select
+ BNC BNC RG62/U Connection
+ *I* have had success using RG59B/U with *NO* terminators!
+ What gives?!
+
+SW1: Timeouts, Interrupt and ROM
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+To select a hardware interrupt level set one (only one!) of the dip switches
+up (on) SW1...(switches 1-5)
+IRQ3, IRQ4, IRQ5, IRQ7, IRQ2. The Manufacturer's default is IRQ2.
+
+The switches on SW1 labeled EXT1 (switch 6) and EXT2 (switch 7)
+are used to determine the timeout parameters. These two dip switches
+are normally left off (down).
+
+ To enable the 8K Boot PROM position SW1 switch 8 on (UP) labeled ROM.
+ The default is jumper ROM not installed.
+
+
+Setting the I/O Base Address
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The last three switches in switch group SW2 are used to select one
+of eight possible I/O Base addresses using the following table::
+
+
+ Switch | Hex I/O
+ 4 5 6 | Address
+ -------|--------
+ 0 0 0 | 260
+ 0 0 1 | 290
+ 0 1 0 | 2E0 (Manufacturer's default)
+ 0 1 1 | 2F0
+ 1 0 0 | 300
+ 1 0 1 | 350
+ 1 1 0 | 380
+ 1 1 1 | 3E0
+
+
+Setting the Base Memory Address (RAM & ROM)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The memory buffer requires 2K of a 16K block of RAM. The base of this
+16K block can be located in any of eight positions.
+Switches 1-3 of switch group SW2 select the Base of the 16K block.
+(0 = DOWN, 1 = UP)
+I could, however, only verify two settings...
+
+
+::
+
+ Switch| Hex RAM | Hex ROM
+ 1 2 3 | Address | Address
+ ------|---------|-----------
+ 0 0 0 | E0000 | E2000
+ 0 0 1 | D0000 | D2000 (Manufacturer's default)
+ 0 1 0 | ????? | ?????
+ 0 1 1 | ????? | ?????
+ 1 0 0 | ????? | ?????
+ 1 0 1 | ????? | ?????
+ 1 1 0 | ????? | ?????
+ 1 1 1 | ????? | ?????
+
+
+Setting the Node ID
+^^^^^^^^^^^^^^^^^^^
+
+The eight switches in group SW3 are used to set the node ID.
+Each node attached to the network must have an unique node ID which
+must be different from 0.
+Switch 1 serves as the least significant bit (LSB).
+switches in the DOWN position are OFF (0) and in the UP position are ON (1)
+
+The node ID is the sum of the values of all switches set to "1"
+These values are::
+
+ Switch | Value
+ -------|-------
+ 1 | 1
+ 2 | 2
+ 3 | 4
+ 4 | 8
+ 5 | 16
+ 6 | 32
+ 7 | 64
+ 8 | 128
+
+Some Examples::
+
+ Switch# | Hex | Decimal
+ 8 7 6 5 4 3 2 1 | Node ID | Node ID
+ ----------------|---------|---------
+ 0 0 0 0 0 0 0 0 | not allowed <-.
+ 0 0 0 0 0 0 0 1 | 1 | 1 |
+ 0 0 0 0 0 0 1 0 | 2 | 2 |
+ 0 0 0 0 0 0 1 1 | 3 | 3 |
+ . . . | | |
+ 0 1 0 1 0 1 0 1 | 55 | 85 |
+ . . . | | + Don't use 0 or 255!
+ 1 0 1 0 1 0 1 0 | AA | 170 |
+ . . . | | |
+ 1 1 1 1 1 1 0 1 | FD | 253 |
+ 1 1 1 1 1 1 1 0 | FE | 254 |
+ 1 1 1 1 1 1 1 1 | FF | 255 <-'
+
+
+Tiara
+=====
+
+(model unknown)
+---------------
+
+ - from Christoph Lameter <christoph@lameter.com>
+
+
+Here is information about my card as far as I could figure it out::
+
+
+ ----------------------------------------------- tiara
+ Tiara LanCard of Tiara Computer Systems.
+
+ +----------------------------------------------+
+ ! ! Transmitter Unit ! !
+ ! +------------------+ -------
+ ! MEM Coax Connector
+ ! ROM 7654321 <- I/O -------
+ ! : : +--------+ !
+ ! : : ! 90C66LJ! +++
+ ! : : ! ! !D Switch to set
+ ! : : ! ! !I the Nodenumber
+ ! : : +--------+ !P
+ ! !++
+ ! 234567 <- IRQ !
+ +------------!!!!!!!!!!!!!!!!!!!!!!!!--------+
+ !!!!!!!!!!!!!!!!!!!!!!!!
+
+- 0 = Jumper Installed
+- 1 = Open
+
+Top Jumper line Bit 7 = ROM Enable 654=Memory location 321=I/O
+
+Settings for Memory Location (Top Jumper Line)
+
+=== ================
+456 Address selected
+=== ================
+000 C0000
+001 C4000
+010 CC000
+011 D0000
+100 D4000
+101 D8000
+110 DC000
+111 E0000
+=== ================
+
+Settings for I/O Address (Top Jumper Line)
+
+=== ====
+123 Port
+=== ====
+000 260
+001 290
+010 2E0
+011 2F0
+100 300
+101 350
+110 380
+111 3E0
+=== ====
+
+Settings for IRQ Selection (Lower Jumper Line)
+
+====== =====
+234567
+====== =====
+011111 IRQ 2
+101111 IRQ 3
+110111 IRQ 4
+111011 IRQ 5
+111110 IRQ 7
+====== =====
+
+Other Cards
+===========
+
+I have no information on other models of ARCnet cards at the moment. Please
+send any and all info to:
+
+ apenwarr@worldvisions.ca
+
+Thanks.
