23 July 2004. SMS.
TQK50 Jumper and Switch Settings
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The TQK50 (M7546) is a Q-bus controller for a TK50 tape (CompacTape
(tm)) drive. It has two DIP switch sets (hardware revision level and
unit number) and one jumper set (CSR address).
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The hardware revision level DIP switch is set to match the module
revision level, which is stamped on the back of the module. The eight
switches represent a binary value: open = 0, closed = 1.
Revision Switch
Level 8 7 6 5 4 3 2 1
----------------------------------
0 0 0 0 0 0 0 0 0
1 (A) 0 0 0 0 0 0 0 1
2 (B) 0 0 0 0 0 0 1 0
3 (C) 0 0 0 0 0 0 1 1
... ...
The unit number DIP switch is similar:
Unit Switch
Number 8 7 6 5 4 3 2 1
----------------------------------
0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 1
2 0 0 0 0 0 0 1 0
3 0 0 0 0 0 0 1 1
... ...
The VMS operating system does not use these data.
------------------------------------------------------------------------
The jumpers set the CSR address (bits 12-2). Jumper removed = 0,
installed = 1.
/----------- Jumpers -----------\
CSR bit: 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Binary: 1 1 1 1 1 1 1 1 1 j j j j j j j j j j j 0 0
`-----' `-----' `-----' `-----' `-----' `-----' `-----'
Octal: 1 7 7 6,7 0-7 0-7 0-7 0,4
Example, 17774500 (default):
/----------- Jumpers -----------\
CSR bit: 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Binary: 1 1 1 1 1 1 1 1 1 1 1 0 0 1 0 1 0 0 0 0 0 0
`-----' `-----' `-----' `-----' `-----' `-----' `-----'
Octal: 1 7 7 7 4 5 0 0
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Jumper and Switch Locations:
\ /
+===========================-----------------------------------+
| \ J1 / |
| | (Drive cable connector) | |
| +-------------------------+ |
| |
--------------------------------, |
| / |
| '-----------------------------------
| CSR |
| |
|A12 o-o |
|A11 o-o |
|A10 o o Hardware |
|A09 o o Revision |
|A08 o-o Level |
|A07 o o +---+ |
|A06 o-o | 1 | |
|A05 o o | 2 | Unit |
|A04 o o | 3 | Number |
|A03 o o | 4 | +---+ |
|A02 o o | 5 | | 1 | |
| | 6 | | 2 | |
| | 7 | | 3 | |
| | 8 | | 4 | |
| +---+ | 5 | |
| | 6 | |
| | 7 | |
| | 8 | |
| +---+ |
| |
| +--------+ |
| | | |
| | | |
+-------------------------+ +-------------------------+
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In SYSGEN CONFIGURE for a TQK50, specify device "TU81".
Follow this link to more Q-bus material.