BUSLOGIC, INC.
BT-542B
Data bus: 16-bit, ISA
Size: Three-quarter length, full-height card
Hard drives supported: Up to seven SCSI devices
Floppy drives supported: Two 360KB, 720KB, 1.2 MB or 1.44 MB drives
|
CONNECTIONS | |
|
Function |
Location |
|
4-pin connector - drive active LED |
J1 |
|
34-pin connector - floppy drive interface |
J2 |
|
50-pin SCSI connector - internal |
J3 |
|
50-pin SCSI connector - external |
J4 |
|
SCSI ADDRESS | ||||
|
SCSI ID |
SW1/Switch 1 |
SW1/Switch 2 |
SW1/Switch 3 | |
|
7 |
on |
on |
on | |
|
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 | |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
|
SCSI Parity check enabled |
SW1/switch 4 |
on | |
|
SCSI Parity check disabled |
SW1/switch 4 |
off | |
|
SCSI Auto Sense function enabled (for Rev. <=F) |
SW1/switch 5 |
on | |
|
SCSI Auto Sense function disabled (for Rev. <=F) |
SW1/switch 5 |
off | |
|
Disk >1G support disabled (for Rev. >=G) |
SW1/switch 5 |
on | |
|
Disk >1G support enabled (for Rev. >=G) |
SW1/switch 5 |
off | |
|
Synchronous transfer initiation from controller disabled |
SW1/switch 6 |
on | |
|
Synchronous transfer intitiation from controller enabled |
SW1/switch 6 |
off | |
|
Floppy drive port address 3F0-3F7h |
W14 |
open | |
|
Floppy drive port address 370-377h |
W14 |
closed | |
|
Floppy drive enabled |
W15, W16 |
closed | |
|
Floppy drive disabled |
W15, W16 |
open | |
|
I/O channel ready enabled |
W17/pins 1 & 2 |
closed | |
|
I/O channel ready disabled |
W17/pins 2 & 3 |
closed | |
|
Factory configured - do not alter |
W18 |
N/A | |
|
Factory configured - do not alter |
W19 |
N/A | |
|
DMA CHANNEL | |||
|
DMA |
SW1/Switch 7 |
SW1/Switch 8 | |
|
5 |
on |
on | |
|
6 |
off |
on | |
|
7 |
on |
off | |
|
Disabled |
off |
off | |
|
I/O PORT ADDRESS | ||||
|
Address |
SW2/Switch 1 |
SW2/Switch 2 |
SW2/Switch 3 | |
|
330h-333h |
on |
on |
on | |
|
130h-133h |
on |
off |
on | |
|
134h-137h |
on |
off |
off | |
|
230h-233h |
off |
on |
on | |
|
234h-237h |
off |
on |
off | |
|
334h-337h |
on |
on |
off | |
|
Reserved |
off |
off |
on | |
|
Reserved |
off |
off |
off | |
|
BIOS ADDRESS | |||
|
Address |
SW2/Switch 4 |
SW2/Switch 5 | |
|
DC000h |
on |
on | |
|
D8000h |
off |
on | |
|
C8000h |
off |
off | |
|
Disabled |
on |
off | |
|
INTERRUPT REQUEST CONFIGURATION | |||||
|
IRQ |
SW2/Switch 6 |
SW2/Switch 7 |
SW2/Switch 8 |
W3 | |
|
IRQ11 |
on |
on |
on |
open | |
|
IRQ9 |
on |
off |
on |
open | |
|
IRQ10 |
off |
on |
on |
open | |
|
IRQ12 |
off |
off |
on |
open | |
|
IRQ14 |
on |
on |
off |
open | |
|
IRQ15 |
off |
on |
off |
closed | |
|
Reserved |
off |
off |
off |
N/A | |
|
Reserved |
on |
off |
off |
N/A | |
|
INTERRUPT REQUEST CONFIGURATION (CONTINUED) | ||||||
|
IRQ |
W4 |
W5 |
W6 |
W7 |
W8 | |
|
IRQ11 |
open |
open |
closed |
open |
open | |
|
IRQ9 |
open |
open |
open |
open |
closed | |
|
IRQ10 |
open |
open |
open |
closed |
open | |
|
IRQ12 |
open |
closed |
open |
open |
open | |
|
IRQ14 |
closed |
open |
open |
open |
open | |
|
IRQ15 |
open |
open |
open |
open |
open | |
|
Reserved |
N/A |
N/A |
N/A |
N/A |
N/A | |
|
Reserved |
N/A |
N/A |
N/A |
N/A |
N/A | |
|
BUS TRANSFER RATE | |||
|
Rate |
W11 |
W13 | |
|
5.0MB/sec |
open |
open | |
|
5.7MB/sec |
open |
closed | |
|
6.7MB/sec |
closed |
open | |
|
8.0MB/sec |
closed |
closed | |