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# BUSLOGIC, INC.
BT-445S
Data bus: 32-bit, VL-bus
Size: Three/quarter-length, full-height card
Hard drive Up to seven SCSI devices
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 control cable connector-floppy drive | J2 |
|---------------------------------------------+--------------|
| 50-pin SCSI connector - internal | J3 |
|---------------------------------------------+--------------|
| 50-pin SCSI connector - external | J4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SCSI ID |
|------------------------------------------------------------|
| ID | SW1/switch 1 | SW1/switch 2 | SW1/switch 3 |
|-------------+---------------+---------------+--------------|
| | 0 | off | off | off |
|---+---------+---------------+---------------+--------------|
| | 1 | on | off | off |
|---+---------+---------------+---------------+--------------|
| | 2 | off | on | off |
|---+---------+---------------+---------------+--------------|
| | 3 | on | on | off |
|---+---------+---------------+---------------+--------------|
| | 4 | off | off | on |
|---+---------+---------------+---------------+--------------|
| | 5 | on | off | on |
|---+---------+---------------+---------------+--------------|
| | 6 | off | on | on |
|---+---------+---------------+---------------+--------------|
| » | 7 | on | on | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-----------------------------------+--------------+---------|
| » | SCSI parity check enabled | SW1/switch 4 | on |
|---+-------------------------------+--------------+---------|
| | SCSI parity check disabled | SW1/switch 4 | off |
|---+-------------------------------+--------------+---------|
| » | Hard drive capacity > 1GB | SW1/switch 5 | on |
| | disabled | | |
|---+-------------------------------+--------------+---------|
| | Hard drive capacity > 1GB | SW1/switch 5 | off |
| | enabled | | |
|---+-------------------------------+--------------+---------|
| » | SCSI synchronous negotiation | SW1/switch 6 | on |
| | disabled | | |
|---+-------------------------------+--------------+---------|
| | SCSI synchronous negotiation | SW1/switch 6 | off |
| | enabled | | |
|---+-------------------------------+--------------+---------|
| » | SCSI 5MB/sec data transfer | SW1/switch 7 | on |
| | rate enabled | | |
|---+-------------------------------+--------------+---------|
| | SCSI 10MB/sec data transfer | SW1/switch 7 | off |
| | rate enabled | | |
|---+-------------------------------+--------------+---------|
| » | Floppy drive port address is | W14 | open |
| | 3F0-3F7h | | |
|---+-------------------------------+--------------+---------|
| | Floppy drive port address is | W14 | closed |
| | 370-377h | | |
|---+-------------------------------+--------------+---------|
| » | Floppy drive enabled | W15 & W16 | closed |
|---+-------------------------------+--------------+---------|
| | Floppy drive disabled | W15 & W16 | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL-BUS CLOCK SPEED CONFIGURATION |
|------------------------------------------------------------|
| Clock Speed | SW1/switch 8 | SW1/switch 9 | SW1/switch 10 |
|--------------+--------------+--------------+---------------|
| | 20MHz | on | on | off |
|---+----------+--------------+--------------+---------------|
| | 25MHz | off | on | off |
|---+----------+--------------+--------------+---------------|
| » | 33 or | on | on | on |
| | 40MHz | | | |
|---+----------+--------------+--------------+---------------|
| | 50MHz | on | off | on |
|---+----------+--------------+--------------+---------------|
| | 50i MHz | off | on | off |
|---+----------+--------------+--------------+---------------|
| | 66i MHz | on | on | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O PORT ADDRESS |
|------------------------------------------------------------|
| Address | SW2/switch 1 | SW2/switch 2 | SW2/switch 3 |
|---------------+--------------+--------------+--------------|
| | 130-133h | on | off | on |
|---+-----------+--------------+--------------+--------------|
| | 134-137h | on | off | off |
|---+-----------+--------------+--------------+--------------|
| | 230-233h | off | on | on |
|---+-----------+--------------+--------------+--------------|
| | 234-237h | off | on | off |
|---+-----------+--------------+--------------+--------------|
| » | 330-333h | on | on | on |
|---+-----------+--------------+--------------+--------------|
| | 334-337h | on | on | off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS |
|------------------------------------------------------------|
| Address | SW2/switch 4 | SW2/switch 5 |
|--------------------+-------------------+-------------------|
| » | DC000h | on | on |
|---+----------------+-------------------+-------------------|
| | C8000h | off | off |
|---+----------------+-------------------+-------------------|
| | D8000h | off | on |
|---+----------------+-------------------+-------------------|
| | Disabled | on | off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HOST INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ | SW2/switch 6 | SW2/switch 7 | SW2/switch 8 |
|-------------+---------------+---------------+--------------|
| | 9 | on | off | on |
|---+---------+---------------+---------------+--------------|
| | 10 | off | on | on |
|---+---------+---------------+---------------+--------------|
| » | 11 | on | on | on |
|---+---------+---------------+---------------+--------------|
| | 12 | off | off | on |
|---+---------+---------------+---------------+--------------|
| | 14 | on | on | off |
|---+---------+---------------+---------------+--------------|
| | 15 | off | on | off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HOST INTERRUPT CHANNEL |
|------------------------------------------------------------|
|Channel|Jumper W3| Jumper | Jumper | Jumper | Jumper |Jumper|
| | | W4 | W5 | W6 | W7 | W8 |
|-------+---------+--------+--------+--------+--------+------|
| | 9 | open | open | open | open | open |closed|
|---+---+---------+--------+--------+--------+--------+------|
| |10 | open | open | open | open | closed | open |
|---+---+---------+--------+--------+--------+--------+------|
| |11 | open | open | open | closed | open | open |
|---+---+---------+--------+--------+--------+--------+------|
|» |12 | open | open | closed | open | open | open |
|---+---+---------+--------+--------+--------+--------+------|
| |14 | open | closed | open | open | open | open |
|---+---+---------+--------+--------+--------+--------+------|
| |15 | closed | open | open | open | open | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| SW2/switch 9 and SW2/switch 10 are factory configured - do |
| not alter |
+------------------------------------------------------------+