BT-445S Hard Disk/Floppy Controller Settings and Configuration
BUSLOGIC, INC.
BT-445S
Data bus: | 32-bit, VL-bus |
Size: | Three/quarter-length, full-height card |
Hard drive supported: | Up to seven SCSI devices |
Floppy drives supported: | Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
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 disabled | SW1/switch 5 | on |
| Hard drive capacity > 1GB enabled | SW1/switch 5 | off |
» | SCSI synchronous negotiation disabled | SW1/switch 6 | on |
| SCSI synchronous negotiation enabled | SW1/switch 6 | off |
» | SCSI 5MB/sec data transfer rate enabled | SW1/switch 7 | on |
| SCSI 10MB/sec data transfer rate enabled | SW1/switch 7 | off |
» | Floppy drive port address is 3F0-3F7h | W14 | open |
| Floppy drive port address is 370-377h | W14 | closed |
» | 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 40MHz | on | on | on |
| 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 W4 | Jumper W5 | Jumper W6 | Jumper W7 | Jumper 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 |
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