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1989-03-22
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INFORMATION ON TOKEN RING ADAPTER CARDS AND LOADING TOKEN RING
INTO HIGH MEMORY
==============================================================
Before proceeding, please make sure that you have read the ALL
Chargecard Manual, the General Network Information file and
read.me file on disk
For Token Ring Adapter Cards, please note the following:
========================================================
You cannot use the Reference Disk for IBM ATs., you can use the
Reference Disk for IBM PS/2s.
If you are using an AT - the BIOS must be dated after June 1985.
There are two versions of Token Ring Adapter : -
a) Primary Adapter
b) Adapter II
The difference between a) and b) is that a) has 8k shared RAM
and 8k ROM and b) has 16k shared RAM and 16k ROM.
In order to find your ROM address, you should refer to Dip
Switch Block 1 and should set those switches 1-6 to the
appropriate address - then you should use the TOKERUI.COM command
file to set the appropriate address for shared RAM.
If you have a PS/2 running VGA, it could be appropriate to
set the ROM & RAM in the B000-B7FF range. If you are using the
Primary Adapter you have 8K ROM and 8K RAM. The best place to
position these are just next door to the Video at B800-BFFF. So
you should set the switches on the Primary Adapter Switch Block 1
to B4000 (see below). The ROM will sit between B4000 and B5FFF
and you should set the RAM start address to B6000, so that your
RAM sits between B6000 and B7FF.
If you are using the Adapter II, you have a 16K ROM and 16K
RAM, so you should set the Switch Block 1 to B0000 (see below).
Your ROM will then load between B0000 and B3FFF. Then you should
set your RAM start address as B4000, so that your RAM sits
between B4000 and B7FFF.
Memory Bits 19 to 14 Switches 1 to 6
Location (F=OFF N=ON)
A8000 010100 N F N F N N
AA000 010101 N F N F N F
AC000 010110 N F N F F N
B0000 011000 N F F N N N
B4000 011010 N F F N F N
B8000 011100 N F F F N N
BC000 011110 N F F F F N
C0000 100000 F N N N N N
C2000 100001 F N N N N F
C4000 100010 F N N N F N
C8000 100100 F N N F N N
CC000 100110 F N N F F N
D0000 101000 F N F N N N
D4000 101010 F N F N F N
DC000 101110 F N F F F N
NOTE: In an AST Premium 286 using BIOS v. 1.1 the Token Ring ROM
address can only be set at DC00
Setting the RAM start address with TOKREUI
e.g.
TOKREUI 400000000001,aaaa <cr> where aaaa is the start address
So for the examples given above:
For Primary adapter, it should be - TOKREUI 400000000001,B400
For the Adapter II, it should be - TOKREUI 400000000001,B000
Then you must exclude the ROM and RAM addresses under ALLEMM4.
e.g. DEVICE=ALLEMM4.SYS RAM X=aaaa-bbbb
For the examples given above your ALLEMM4 line in your CONFIG.SYS
should look like this:
For Primary Adapter:
DEVICE=ALLEMM4.SYS RAM=B000-B3FF X=B400-B7FF <+ other parameters>
For the Adapter II:
DEVICE=ALLEMM4.SYS RAM X=B000-B7FF <+ other parameters>
The highest address you can set ROM is at DC00-DFFF.
The preferred way of setting RAM is at DA00 for 8k RAM or
D800 for 16k RAM -
e.g. DEVICE=ALLEMM4.SYS RAM X=DA00-DFFF
or DEVICE=ALLEMM4.SYS RAM X=D800-DFFF
TOKEN RING
==========
Please note: If you are using the IBM 3270 Connection Adapter
for 3270 emulation, then it is critical where it
and the IBM Token Ring Adapter sit in the BUS.
The 3270 Connection Adapter should be in Slot 1
(nearest the outside casing) and the IBM Token
Ring Adapter should be in Slot 2 next to it.
Please note: If you are using Token Ring Drivers they should
always be used in the following order and
DXMC0MOD.SYS should always be loaded in low
memory:
DEVICE=DXMA0MOD.SYS
DEVICE=DXMC0MOD.SYS<HT>
DEVICE=DXMT0MOD.SYS (This driver is optional)