BUSLOGIC, INC.
BT-545S
|
| |
|
Data bus: |
16-bit, ISA |
|
Size: |
Three/quarter-length, full-height card |
|
Hard drive supported: |
Up to seven SCSI drives |
|
Floppy drives supported: |
Two 360KB, 720KB, 1.2MB or 1.44MB drives |
|
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 7 |
SB2/switch 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 by BT-545S disabled |
SB1/switch 6 |
on |
|
Sync Negotiation initiated by BT-545S enabled |
SB1/switch 6 |
off | |
| » |
Factory Configured - do not alter |
W2 |
open |
| » |
Factory Configured - do not alter |
W9 |
open |
| » |
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 | |
| » |
IOCHRDY enabled |
W17 |
Pins 1-2 closed |
|
IOCHRDY disabled |
W17 |
Pins 2-3 closed | |
| » |
Factory Configured - do not alter |
W18 |
closed |
| » |
Sync transfer rate is 5MB/sec |
W19 |
closed |
|
Sync transfer rate is 10MB/sec |
W19 |
open | |
|
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 | ||||||||
