AHA-1520, AHA-1522 Hard Disk/Floppy Controller Settings and Configuration
ADAPTEC, INC.
AHA-1520, AHA-1522
Data
bus: | 16-bit, ISA |
Size: | Half-length, full-height card |
Hard drives supported: | Up to seven SCSI devices |
Floppy drives supported: | Two 360KB, 720KB, 1.2MB or 1.44MB |
CONNECTIONS | |
Function | Location |
34-pin data cable connector-floppy drive | CN1 |
50-pin SCSI cable connector-internal | CN2 |
50-pin SCSI cable connector-external | CN3 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | Data transfer in DMA disabled | J5/jumper 1 | open |
Data transfer in DMA enabled | J5/jumper 1 | closed | |
| » | Boot enabled (Intercept INT19 call) | J5/jumper 2 | closed |
Boot disabled (INT19 normal) | J5/jumper 2 | open | |
| » | Synchronous negotiation enabled | J5/jumper 5 | closed |
Synchronous negotiation disabled | J5/jumper 5 | open | |
| » | Disconnect by target / INT15 enabled | J5/jumper 6 | closed |
Disconnect by target / INT15 disabled | J5/jumper 6 | open | |
| » | Factory configured - do not alter | J5/jumpers 7 & 8 | open |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | SCSI parity check enabled | J6/jumper 8 | open |
SCSI parity check disabled | J6/jumper 8 | closed | |
| » | Floppy drive enabled | J7/jumper 1 | closed |
Floppy drive disabled | J7/jumper 1 | open | |
| » | Floppy drive Interrupt is IRQ6 | J7/jumper 6 | closed |
Floppy drive Interrupt is IRQ10 | J7/jumper 7 | closed | |
| » | Floppy drive-dual speed disabled | J7/jumper 8 | open |
Floppy drive-dual speed enabled | J7/jumper 8 | closed | |
| » | I/O port address 340h | J9/jumper 5 | open |
I/O port address 140h | J9/jumper 5 | closed | |
SCSI ADDRESS | ||||
SCSI ID | J6/jumper 1 | J6/jumper 2 | J6/jumper 3 | |
0 | open | open | open | |
1 | closed | open | open | |
2 | open | closed | open | |
3 | closed | closed | open | |
4 | open | open | closed | |
5 | closed | open | closed | |
6 | open | closed | closed | |
| » | 7 | closed | closed | closed |
DMA CHANNEL | |||||||
DMA | J6/6 | J6/7 | J8/1 & 5 | J8/2 & 6 | J8/3 & 7 | J8/4 & 8 | |
7 | closed | closed | closed | open | open | open | |
6 | open | closed | open | closed | open | open | |
| 5 | closed | open | open | open | closed | open | |
| » | 0 | open | open | open | open | open | closed |
INTERRUPT REQUEST | |||||||
IRQ | J6/4 | J6/5 | J9/1 | J9/2 | J9/3 | J9/4 | |
IRQ9 | open | open | open | open | open | closed | |
IRQ10 | closed | open | open | open | closed | open | |
| » | IRQ11 | open | closed | open | closed | open | open |
IRQ12 | closed | closed | closed | open | open | open | |
BIOS ADDRESS | ||||
Address | J9/jumper 6 | J9/jumper 7 | J9/jumper 8 | |
| » | DC000h | closed | closed | closed |
C8000h | open | open | closed | |
CC000h | open | closed | closed | |
D8000h | closed | open | closed | |
Disabled | N/A | N/A | open | |
FLOPPY DRIVE DMA - J7 | |||||
DRQ | DACK | ||||
DMA | Jumper 2 | Jumper 3 | Jumper 4 | Jumper 5 | |
| » | DMA Channel 2 | closed | open | closed | open |
DMA Channel 3 | open | closed | open | closed | |
MESSAGE SELECT MSG #0 - ADAPTEC HEADERMSG #1 - JUMPER CONFIG. INFO. MSG #2 - SCSI DEVICE INFO. MSG #3 - BOOT PROGRESS INFO.MSG #4 - ERROR MESSAGES | |||
Message | JP5/jumper 3 | JP5/jumper 4 | |
| » | Msg #0 and #4 | open | open |
Msg #0, #3 and #4 | open | closed | |
All messages displayed | closed | open | |
Msg #4 only | closed | closed | |
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