ADVANCED DIGITAL INFORMATION CORPORATION
ISA DCB
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 |
CN1 |
|
34-pin data cable connector - floppy drives |
CN2 |
|
50-pin SCSI connector - internal |
CN3 |
|
50-pin SCSI connector - external |
CN4 |
|
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 | |
| » |
Floppy drive port address 3F0-3F7h |
JP14 |
open |
|
Floppy drive port address 370-377h |
JP14 |
closed | |
| » |
Floppy drive disabled |
JP15 & JP16 |
open |
|
Floppy drive enabled |
JP15 & JP16 |
closed | |
| » |
I/O channel ready disabled |
JP17/pins 1 & 2 |
closed |
| » |
I/O channel ready enabled |
JP17/pins 2 & 3 |
closed |
| » |
SCSI Parity check enabled (BT-542 only) |
SW1/switch 4 |
on |
|
SCSI Parity check disabled (BT-542 only) |
SW1/switch 4 |
off | |
| » |
SCSI Auto Sense function enabled |
SW1/switch 5 |
on |
|
SCSI Auto Sense function disabled |
SW1/switch 5 |
off | |
| » |
Synchronous transfer initiation from controller disabled |
SW1/switch 6 |
on |
|
Synchronous transfer intitiation from controller enabled |
SW1/switch 6 |
off | |
|
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 |
|
134h-137h |
on |
off |
off | |
|
234h-237h |
off |
on |
off | |
|
334h-337h |
on |
on |
off | |
|
130h-133h |
on |
off |
on | |
|
230h-233h |
off |
on |
on | |
|
Reserved |
off |
off |
on | |
|
Reserved |
off |
off |
off | |
|
BIOS ADDRESS BT-542B | |||
|
Address |
SW2/Switch 4 |
SW2/Switch 5 | |
| » |
DC000h |
on |
on |
|
D8000h |
off |
on | |
|
C8000h |
off |
off | |
|
Disabled |
on |
off | |
|
BUS TRANSFER RATE BT-542B | |||
|
Rate |
Jumper JP11 |
Jumper JP13 | |
| » |
5.0MB/sec |
open |
open |
| » |
5.7MB/sec |
open |
closed |
| » |
6.7MB/sec |
closed |
open |
| » |
8.0MB/sec |
closed |
closed |
|
Note: It is recommended that you leave JP11 and JP13 open at all times. | |||
|
INTERRUPT REQUEST CONFIGURATION | |||||
|
IRQ |
SW2/Switch 6 |
SW2/Switch 7 |
SW2/Switch 8 |
JP3 | |
| » |
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 |
JP4 |
JP5 |
JP6 |
JP7 |
JP8 | |
| » |
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 | |
|
MISCELLANEOUS TECHNICAL NOTE |
|
The ISA DCB can operate alone or paired with another ISA DCB. If you are using a pair of ISA DCB’s, please use the following defaults for the second card: SCSI ID: 7, SCSI Parity Check: Disabled, Auto-sense: Enabled, SCSI sych negotiation: Enabled, DMA Channel: 6, I/O Address: 334h, Host BIOS: Disabled, Interrupt: IRQ12. |
