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# UNIDENTIFIED
CI-91 (SMD)
Card Type Hard drive controller
Hard Drives Two IDE (AT/XT) drives
supported
Floppy drives Two 360KB, 720KB, 1.2MB, or 1.44MB drives
supported
Data Bus 16-bit ISA
Card Size Half-length, full-height
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-----------------------+-------+--------------------+-------|
| 9-pin serial port 1 - | J1 | 10-pin serial port | JP4 |
| external | | 2 - internal | |
|-----------------------+-------+--------------------+-------|
| 25-pin parallel port | J2 | 4-pin connector - | JP5 |
| - external | | drive active LED | |
|-----------------------+-------+--------------------+-------|
| 40-pin IDE(AT) | JP1 | 16-pin game port | JP6 |
| connector | | | |
|-----------------------+-------+--------------------+-------|
| 34-pin cable | JP3 | | |
| connector - floppy | | | |
| drive | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| Single hard drive connected to | JP2 | Closed |
| controller | | |
|---------------------------------------+-------+------------|
| Two hard drives connected to | JP2 | Open |
| controller | | |
|---------------------------------------+-------+------------|
| PC/XT mode enabled | JP13 | Pins 1 & 2 |
| | | closed |
|---------------------------------------+-------+------------|
| PC/AT mode enabled | JP13 | Pins 2 & 3 |
| | | closed |
|---------------------------------------+-------+------------|
| Floppy drive interface enabled | JP14 | Pins 2 & 3 |
| | | closed |
|---------------------------------------+-------+------------|
| Floppy drive interface disabled | JP14 | Pins 1 & 2 |
| | | closed |
|---------------------------------------+-------+------------|
| IDE(AT) interface address is 316h, | JP15 | Pins 1 & 2 |
| 317h, 110h | | closed |
|---------------------------------------+-------+------------|
| IDE(AT) interface address is 376h, | JP15 | Pins 2 & 3 |
| 377h, 170h | | closed |
|---------------------------------------+-------+------------|
| IDE(AT) interface enabled | JP16 | Pins 2 & 3 |
| | | closed |
|---------------------------------------+-------+------------|
| IDE(AT) interface disabled | JP16 | Pins 1 & 2 |
| | | closed |
|---------------------------------------+-------+------------|
| Floppy drive order is normal (A:, B:) | JP17 | Pins 2 & 3 |
| | | closed |
|---------------------------------------+-------+------------|
| Floppy drive order is reversed (B:, | JP17 | Pins 1 & 2 |
| A:) | | closed |
|---------------------------------------+-------+------------|
| Floppy drive address is 3F0h | JP18 | Pins 1 & 2 |
| | | closed |
|---------------------------------------+-------+------------|
| Floppy drive address is 370h | JP18 | Pins 2 & 3 |
| | | closed |
|---------------------------------------+-------+------------|
| Parallel port is uni-directional | JP20 | Closed |
|---------------------------------------+-------+------------|
| Parallel port is bi-directional | JP20 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | JP11 | JP12 |
|------------------+--------------------+--------------------|
| LPT1 (378h) | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| LPT2 (278h) | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| LPT3 (3BCh) | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| Disabled | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | JP7 | JP8 |
|------------------+--------------------+--------------------|
| COM1 (3F8h) | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| COM3 (3E8h) | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| COM4 (2E8h) | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| Disabled | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | JP9 | JP10 |
|------------------+--------------------+--------------------|
| COM2 (2F8h) | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| COM3 (3E8h) | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| COM4 (2E8h) | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| Disabled | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP19/1 | JP19/2 | JP19/3 |
|--------------+---------------+--------------+--------------|
| IRQ3 | Open | Closed | Open |
|--------------+---------------+--------------+--------------|
| IRQ4 | Closed | Open | Open |
|--------------+---------------+--------------+--------------|
| IRQ5 | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP19/4 | JP19/5 | JP19/6 |
|--------------+---------------+--------------+--------------|
| IRQ3 | Closed | Open | Open |
|--------------+---------------+--------------+--------------|
| IRQ4 | Open | Closed | Open |
|--------------+---------------+--------------+--------------|
| IRQ5 | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP19/7 | JP19/8 |
|-------------------+--------------------+-------------------|
| IRQ5 | Open | Closed |
|-------------------+--------------------+-------------------|
| IRQ7 | Closed | Open |
+------------------------------------------------------------+