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  |