ADAPTEC, INC.
AHA-1520A, AHA1522A
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| |
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Data bus: |
16-bit ISA |
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Size: |
Half-length, full-height card |
|
Hard drive supported: |
Up to seven SCSI devices |
|
Floppy drives supported: |
None |
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CONNECTIONS | |
|
Function |
Location |
|
50-pin SCSI connector - external |
CN1 |
|
50-pin SCSI connector - internal |
CN2 |
|
34-pin floppy controller - 1522A only |
CN3 |
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SCSI ID SELECTION | ||||
|
SCSI ID |
J6/1 |
J6/2 |
J6/3 | |
|
7 |
closed |
closed |
closed | |
|
0 |
open |
open |
open | |
|
1 |
closed |
open |
open | |
|
2 |
open |
closed |
open | |
|
3 |
closed |
closed |
open | |
|
4 |
open |
open |
closed | |
|
5 |
closed |
pen |
closed | |
|
6 |
open |
closed |
closed | |
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USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
|
Factory configured - do not alter |
J5/1 |
open | |
|
INT 19 is re-routed |
J5/2 |
closed | |
|
INT 19 is not re-routed |
J5/2 |
open | |
|
Sync. negotiation enabled |
J5/5 |
closed | |
|
Sync. negotiation disabled |
J5/5 |
open | |
|
Disconnect by target SCSI device enabled |
J5/6 |
closed | |
|
Disconnect by target SCSI device disabled |
J5/6 |
open | |
|
Factory configured - do not alter |
J5/7 |
open | |
|
Factory configured - do not alter |
J5/8 |
open | |
|
Factory configured - do not alter |
J6/6 |
open | |
|
Factory configured - do not alter |
J6/7 |
open | |
|
SCSI parity check enabled |
J6/8 |
open | |
|
SCSI parity check disabled |
J6/8 |
closed | |
|
Floppy drive enabled (only on 1522A) |
J7 |
closed | |
|
Floppy drive disabled (only on 1522A) |
J7 |
open | |
|
Factory configured - do not alter |
J8/1-8 |
open | |
|
Adapter I/O address is 340h |
J9/5 |
open | |
|
Adapter I/O address is 140h |
J9/5 |
closed | |
|
Host adapter BIOS enabled |
J9/8 |
closed | |
|
Host adapter BIOS disabled |
J9/8 |
open | |
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Note: When connecting both external & internal devices to the host adapter - remove terminators | |||
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MESSAGES AT BOOT-UP | |||
|
Message |
J5/3 |
J5/4 | |
|
Adapter header |
open |
open | |
|
Error messages |
closed |
closed | |
|
Boot progress report |
open |
closed | |
|
SCSI device information |
closed |
open | |
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BIOS ADDRESS SELECTION | |||
|
Address |
J9/6 |
J9/7 | |
|
DFFFFh |
closed |
closed | |
|
CBFFFh |
open |
open | |
|
CFFFFh |
open |
closed | |
|
DBFFFh |
closed |
open | |
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INTERRUPT SELECTION | |||||||
|
IRQ |
J6/4 |
J6/5 |
J9/1 |
J9/2 |
J9/3 |
J9/4 | |
|
11 |
open |
closed |
open |
closed |
open |
open | |
|
9 |
open |
open |
open |
open |
open |
closed | |
|
10 |
closed |
open |
open |
open |
closed |
open | |
|
12 |
closed |
closed |
closed |
open |
open |
open | |