23 July 2004. SMS.
KZQSA Jumper Settings
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The KZQSA (M5976) is a Q-bus SCSI adapter.
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Jumpers W13 through W9 set the memory base address (bits 21-17, for
the 128kB on-board memory). Jumper removed = 0, installed = 1. (Jumper
W8 is reserved for Digital use, and should not be installed.)
Jumper W W W W W
13 12 11 10 9
MBA bit: 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Binary: j j j j j 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
`-----' `-----' `-----' `-----' `-----' `-----' `-----'
Octal: 0,1 0-7 0,4 0 0 0 0 0
Example, 01000000 (default):
Jumper W W W W W
13 12 11 10 9
R R R I R (R = removed, I = installed.)
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: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
`-----' `-----' `-----' `-----' `-----' `-----' `-----'
Octal: 0 1 0 0 0 0 0 0
Having all jumpers installed gives memory base address 17400000,
which is illegal (overlapping the I/O page), and should not be used.
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Jumpers W7 through W1 set the CSR address (bits 12-6). Jumper
removed = 0, installed = 1.
Jumper W W W W W W W
7 6 5 4 3 2 1
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 0 0 0 0 0 0
`-----' `-----' `-----' `-----' `-----' `-----' `-----'
Octal: 1 7 7 6,7 0-7 0-7 0 0
Example, 17761300 (default):
Jumper W W W W W W W
7 6 5 4 3 2 1
(R = removed, I = installed.) R R R I R I I
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 0 0 0 1 0 1 1 0 0 0 0 0 0
`-----' `-----' `-----' `-----' `-----' `-----' `-----'
Octal: 1 7 7 6 1 3 0 0
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Jumpers W14 through W16 set the SCSI ID of the KZQSA adapter. Jumper
removed = 0, installed = 1.
ID2 ID1 ID0
SCSI ID W14 W15 W16
0 0 0 0
1 0 0 1
2 0 1 0
3 0 1 1
4 1 0 0
5 1 0 1
6 1 1 0
7 1 1 1 (Default)
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Note that the KZQSA was supported only for CD-ROM and tape, not for
hard disks, but failure with unsupported devices is not certain.
The LED indicates power through the terminator fuse.
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In SYSGEN CONFIGURE for a KZQSA, specify device "QZA".
Follow this link to more Q-bus material.