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 |