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# MULTI-TECH SYSTEMS, INC.
ISI1508PC
Card Type Serial controller
Chipset/Controller Unidentified
I/O Options Serial ports (8)
Maximum DRAM N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|-------------------------------+----------------------------|
| DB-78 connector | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O ADDRESS SELECT (REVISION A) |
|------------------------------------------------------------|
| Address |SW1/1 |SW1/2 |SW1/3|SW1/4|SW1/5|SW1/6|SW1/7|SW1/8|
|----------+------+------+-----+-----+-----+-----+-----+-----|
|» | 200h | Off | Off | Off | Off | Off | Off | Off | On |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 100h | Off | Off | Off | Off | Off | Off | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 108h | Off | On | Off | Off | Off | Off | Off | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 110h | Off | Off | On | Off | Off | Off | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 118h | Off | On | On | Off | Off | Off | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 120h | Off | Off | Off | On | Off | Off | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3D8h | Off | On | On | Off | On | On | On | On |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3E0h | On | On | On | Off | Off | Off | Off | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3E8h | Off | On | Off | On | On | On | On | On |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3F0h | Off | Off | On | On | On | On | On | On |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3F8h | Off | On | On | On | On | On | On | On |
|------------------------------------------------------------|
| Note:A total of 96 address settings are available. The |
| switches are a binary representation of the decimal |
| addresses. Switch 1 is the Least Significant bit and |
| switch 8 is the Most Significant bit. The switches have |
| the following decimal values: switch 1=1, 2=2, 3=4, 4=8, |
| 5=16, 6=32, 7=64, 8=128. Turn Off the switches and add the|
| values of the Off switches to obtain the correct address. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O ADDRESS SELECT (REVISION B) |
|------------------------------------------------------------|
| Address |SW1/1 |SW1/2 |SW1/3|SW1/4|SW1/5|SW1/6|SW1/7|SW1/8|
|----------+------+------+-----+-----+-----+-----+-----+-----|
|» | 200h | Off | Off | Off | Off | Off | Off | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 100h | Off | Off | Off | Off | Off | On | Off | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 108h | On | Off | Off | Off | Off | On | Off | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 110h | Off | On | Off | Off | Off | On | Off | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 118h | On | On | Off | Off | Off | On | Off | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 120h | Off | Off | On | Off | Off | On | Off | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3D8h | On | On | Off | On | On | On | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3E0h | Off | Off | On | On | On | On | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3E8h | On | Off | On | On | On | On | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3F0h | Off | On | On | On | On | On | On | Off |
|---+------+------+------+-----+-----+-----+-----+-----+-----|
| | 3F8h | On | On | On | On | On | On | On | Off |
|------------------------------------------------------------|
| Note:A total of 96 address settings are available. The |
| switches are a binary representation of the decimal |
| addresses. Switch 1 is the Least Significant bit and |
| switch 8 is the Most Significant bit. The switches have |
| the following decimal values: switch 1=1, 2=2, 3=4, 4=8, |
| 5=16, 6=32, 7=64, 8=128. Turn Off the switches and add the|
| values of the Off switches to obtain the correct address. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ | J1/A | J1/B | J1/C | J1/D | J1/E | J1/F |
|--------+--------+--------+--------+--------+-------+-------|
|»| IRQ3 | Open | Closed | Open | Open | Open | Open |
|-+------+--------+--------+--------+--------+-------+-------|
| | IRQ2 | Closed | Open | Open | Open | Open | Open |
|-+------+--------+--------+--------+--------+-------+-------|
| | IRQ4 | Open | Open | Closed | Open | Open | Open |
|-+------+--------+--------+--------+--------+-------+-------|
| | IRQ5 | Open | Open | Open | Closed | Open | Open |
|-+------+--------+--------+--------+--------+-------+-------|
| | IRQ6 | Open | Open | Open | Open |Closed | Open |
|-+------+--------+--------+--------+--------+-------+-------|
| | IRQ7 | Open | Open | Open | Open | Open |Closed |
+------------------------------------------------------------+