PERCEPTIVE SOLUTIONS, INC.
1200SX DATASHADOW SCSI CONTROLLER
Card Type | Floppy drive controller, Hard drive controller card |
Hard Drives supported | Up to 7 SCSI devices |
Floppy drives supported | Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
Data Bus | 16-bit ISA |
Card Size | Three-quarter length, full-height card |

CONNECTIONS | |||
Function | Location | Function | Location |
4-pin connector - drive active LED | CN1 | 34-pin cable connector - floppy drive | CN3 |
50-pin SCSI connector - internal | CN2 | 50-pin SCSI connector - external | CN4 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
| » | SCSI termination enabled | SW1/A | On |
| SCSI termination disabled | SW1/A | Off | |
| » | HSOS load enabled | SW1/B | Off |
| HSOS load disabled | SW1/B | On | |
| » | Floppy motor speed | SW1/C | Off |
| » | Floppy drive enable | SW1/F | Off |
Floppy drive disable | SW1/F | On | |
| » | Port address is 37x-3Fxh | SW1/G | Off |
| Port address is 17x-37xh | SW1/G | On | |
INTERRUPT SELECTION | ||
Interrupt | SW1/C | SW1/D |
IRQ14 | Off | Off |
IRQ15 | Off | On |
BIOS ADDRESS SELECTION | |||
Address | SW1/H | SW1/I | SW1/J |
CA00h | On | Off | Off |
C800h | On | Off | On |
D000h | Off | Off | Off |
D400h | Off | On | On |
D800h | Off | On | Off |
DA00h | Off | Off | On |
BIOS disabled | On | On | On |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
512KB | (2) 256KB x 9 | None |
1MB | (2) 256KB x 9 | (2) 256KB x 9 |
2MB | (2) 1MB x 9 | None |
4MB | (2) 1MB x 9 | (2) 1MB x 9 |
8MB | (2) 4MB x 9 | None |
16MB | (2) 4MB x 9 | (2) 4MB x 9 |