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# PERCEPTIVE SOLUTIONS, INC.
1200SX DATASHADOW SCSI CONTROLLER
Card Type Floppy drive controller, Hard drive controller
card
Hard Drives Up to 7 SCSI devices
supported
Floppy drives Two 360KB, 720KB, 1.2MB, or 1.44MB drives
supported
Data Bus 16-bit ISA
Card Size Three-quarter length, full-height card
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location | Function | Location |
|-------------------+----------+------------------+----------|
| 4-pin connector - | CN1 | 34-pin cable | CN3 |
| drive active LED | | connector - | |
| | | floppy drive | |
|-------------------+----------+------------------+----------|
| 50-pin SCSI | CN2 | 50-pin SCSI | CN4 |
| connector - | | connector - | |
| internal | | external | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+