TEXT View Source
# BUSLOGIC, INC.
BT-545S
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 16-bit, ISA |
|-------------------+----------------------------------------|
| Size: | Three/quarter-length, full-height card |
|-------------------+----------------------------------------|
| Hard drive | Up to seven SCSI drives |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB or 1.44MB |
| supported: | drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|--------------------------------------------+---------------|
| 4-pin connector - Drive Active LED | J1 |
|--------------------------------------------+---------------|
| 34-pin cable connector - floppy drive | J2 |
|--------------------------------------------+---------------|
| 50-pin SCSI connector - internal | J3 |
|--------------------------------------------+---------------|
| 50-pin SCSI connector - external | J4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SCSI ADDRESS |
|------------------------------------------------------------|
| Address | SB1/switch 1 | SB1/switch 2 | SB1/switch 3 |
|------------+---------------+---------------+---------------|
| | 0 | off | off | off |
|----+-------+---------------+---------------+---------------|
| | 1 | off | off | on |
|----+-------+---------------+---------------+---------------|
| | 2 | off | on | off |
|----+-------+---------------+---------------+---------------|
| | 3 | off | on | on |
|----+-------+---------------+---------------+---------------|
| | 4 | on | off | off |
|----+-------+---------------+---------------+---------------|
| | 5 | on | off | on |
|----+-------+---------------+---------------+---------------|
| | 6 | on | on | off |
|----+-------+---------------+---------------+---------------|
| » | 7 | on | on | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL |
|------------------------------------------------------------|
| DRQ | SB1/switch 7 | SB1/switch 8 |
|--------------------+-------------------+-------------------|
| | Disabled | off | off |
|---+----------------+-------------------+-------------------|
| | DRQ7 | on | off |
|---+----------------+-------------------+-------------------|
| | DRQ6 | off | on |
|---+----------------+-------------------+-------------------|
| » | DRQ5 | on | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O PORT ADDRESS |
|------------------------------------------------------------|
| Address | SB2/switch 1 | SB2/switch 2 | SB2/switch 3 |
|---------------+--------------+--------------+--------------|
| | Reserved | off | off | off |
|---+-----------+--------------+--------------+--------------|
| | 134-137h | off | off | on |
|---+-----------+--------------+--------------+--------------|
| | 234-237h | off | on | off |
|---+-----------+--------------+--------------+--------------|
| | 334-337h | off | on | on |
|---+-----------+--------------+--------------+--------------|
| | Reserved | on | off | off |
|---+-----------+--------------+--------------+--------------|
| | 130-133h | on | off | on |
|---+-----------+--------------+--------------+--------------|
| | 230-233h | on | on | off |
|---+-----------+--------------+--------------+--------------|
| » | 330-333h | on | on | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS |
|------------------------------------------------------------|
| Address | SB2/switch 4 | SB2/switch 5 |
|--------------------+-------------------+-------------------|
| | C800h | off | off |
|---+----------------+-------------------+-------------------|
| | Disabled | on | off |
|---+----------------+-------------------+-------------------|
| | D800h | off | on |
|---+----------------+-------------------+-------------------|
| » | DC00h | on | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST ||
|-----------------------------------------------------------||
| IRQ | SB2/switch 6 | SB2/switch | SB2/switch ||
| | | 7 | 8 ||
|----------------+--------------+-------------+-------------||
| | Reserved | off | off | off ||
|---+------------+--------------+-------------+-------------||
| | Reserved | off | off | on ||
|---+------------+--------------+-------------+-------------||
| | IRQ15 | off | on | off ||
|---+------------+--------------+-------------+-------------||
| | IRQ14 | off | on | on ||
|---+------------+--------------+-------------+-------------||
| | IRQ12 | on | off | off ||
|---+------------+--------------+-------------+-------------||
| | IRQ9 | on | off | on ||
|---+------------+--------------+-------------+-------------||
| | IRQ10 | on | on | off ||
|---+------------+--------------+-------------+-------------||
| » | IRQ11 | on | on | on ||
|---+--------------------------------------------------------|
| | Jumpers W3-W8 must be set in accordance with |
| | SB2/switches 6-8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|----------------------------------+--------------+----------|
| » | SCSI parity check enabled | SB1/switch 4 | on |
|----+-----------------------------+--------------+----------|
| | SCSI parity check disabled | SB1/switch 4 | off |
|----+-----------------------------+--------------+----------|
| | >1GB drive support disabled | SB1/switch 5 | on |
|----+-----------------------------+--------------+----------|
| | >1GB drive support enabled* | SB1/switch 5 | off |
|----+-----------------------------+--------------+----------|
| » | Sync Negotiation initiated | SB1/switch 6 | on |
| | by BT-545S disabled | | |
|----+-----------------------------+--------------+----------|
| | Sync Negotiation initiated | SB1/switch 6 | off |
| | by BT-545S enabled | | |
|----+-----------------------------+--------------+----------|
| » | Factory Configured - do not | W2 | open |
| | alter | | |
|----+-----------------------------+--------------+----------|
| » | Factory Configured - do not | W9 | open |
| | alter | | |
|----+-----------------------------+--------------+----------|
| » | Floppy drive port address | W14 | open |
| | is 3F0-3F7h | | |
|----+-----------------------------+--------------+----------|
| | Floppy drive port address | W14 | closed |
| | is 370-377h | | |
|----+-----------------------------+--------------+----------|
| » | Floppy drive enabled | W15 & W16 | closed |
|----+-----------------------------+--------------+----------|
| | Floppy drive disabled | W15 & W16 | open |
|----+-----------------------------+--------------+----------|
| » | IOCHRDY enabled | W17 | Pins 1-2 |
| | | | closed |
|----+-----------------------------+--------------+----------|
| | IOCHRDY disabled | W17 | Pins 2-3 |
| | | | closed |
|----+-----------------------------+--------------+----------|
| » | Factory Configured - do not | W18 | closed |
| | alter | | |
|----+-----------------------------+--------------+----------|
| » | Sync transfer rate is | W19 | closed |
| | 5MB/sec | | |
|----+-----------------------------+--------------+----------|
| | Sync transfer rate is | W19 | open |
| | 10MB/sec | | |
|------------------------------------------------------------|
| Note:The SCO UNIX device driver does not support drives |
| greater than 1GB. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA TRANSFER RATE |
|------------------------------------------------------------|
| Speed | W11 | W13 |
|------------------------+-----------------+-----------------|
| » | 5MB/sec | open | open |
|---+--------------------+-----------------+-----------------|
| | 5.7MB/sec | open | closed |
|---+--------------------+-----------------+-----------------|
| | 6.7MB/sec | closed | open |
|---+--------------------+-----------------+-----------------|
| | 8.0MB/sec | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST ||
|-----------------------------------------------------------||
| IRQ | W3 | W4 | W5 | W6 | W7 | W8 ||
|---------+--------+--------+-------+-------+-------+-------||
| | IRQ15 | closed | open | open | open | open | open ||
|-+-------+--------+--------+-------+-------+-------+-------||
| | IRQ14 | open | closed | open | open | open | open ||
|-+-------+--------+--------+-------+-------+-------+-------||
| | IRQ12 | open | open |closed | open | open | open ||
|-+-------+--------+--------+-------+-------+-------+-------||
|»| IRQ11 | open | open | open |closed | open | open ||
|-+-------+--------+--------+-------+-------+-------+-------||
| | IRQ10 | open | open | open | open |closed | open ||
|-+-------+--------+--------+-------+-------+-------+-------||
| | IRQ9 | open | open | open | open | open |closed ||
|-+----------------------------------------------------------|
| | SB2/switches 6-8 must be set in accordance with Jumpers |
| | W3-W8 |
+------------------------------------------------------------+