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# BOCA RESEARCH, INC.
IOAT43
Card Type MULTI I/O
Chipset Controller National Semiconductor
I/O Options Parallel port, Serial port (2)
Maximum DRAM N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port 2 | J1 | Serial port 1 | J2 |
|-------------------+----------+------------------+----------|
| Parallel port | J3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | J5/C |
|----------------------------+-------------------------------|
| LPT1 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| LPT2 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | J5/A |
|----------------------------+-------------------------------|
| COM1 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| COM3 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | J5/B |
|----------------------------+-------------------------------|
| COM2 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| COM4 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J5/D |
|----------------------------+-------------------------------|
| » | 7 | Pins 2 & 3 closed |
|------+---------------------+-------------------------------|
| | 5 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J5/E pins 1 & | J5/F pins | J5/G pins | J5/H pins |
| | 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|-------+----------------+-----------+-----------+-----------|
| » | 4 | Open | Closed | Open | Open |
|---+---+----------------+-----------+-----------+-----------|
| | 3 | Closed | Open | Open | Open |
|---+---+----------------+-----------+-----------+-----------|
| | 5 | Open | Open | Closed | Open |
|---+---+----------------+-----------+-----------+-----------|
| | 9 | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J5/E pins 2 & | J5/F pins | J5/G pins | J5/H pins |
| | 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|-------+----------------+-----------+-----------+-----------|
| » | 3 | Closed | Open | Open | Open |
|---+---+----------------+-----------+-----------+-----------|
| | 4 | Open | Closed | Open | Open |
|---+---+----------------+-----------+-----------+-----------|
| | 5 | Open | Open | Closed | Open |
|---+---+----------------+-----------+-----------+-----------|
| | 9 | Open | Open | Open | Closed |
+------------------------------------------------------------+