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# ATTACHMATE CORPORATION
SDLC ADAPTER (NEW)
Card Type Serial card
Chip Set Unidentified
Data Bus 8-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label |
|-------------------------------+----------------------------|
| 25-pin serial port | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP2 | JP4 |
|------------------+--------------------+--------------------|
| 1 | Pins 7 & 8 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 2 | Pins 5 & 6 closed | Pins 3 & 4 closed |
|------------------+--------------------+--------------------|
| 3 | Pins 3 & 4 closed | Pins 5 & 6 closed |
|------------------+--------------------+--------------------|
| None | Pins 1 & 2 closed | Pins 7 & 8 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 |
|-------------+----------+--------+--------+--------+--------|
| | 0h | On | On | On | On | On |
|----+--------+----------+--------+--------+--------+--------|
| | 20h | On | On | On | On | Off |
|----+--------+----------+--------+--------+--------+--------|
| | 40h | On | On | On | Off | On |
|----+--------+----------+--------+--------+--------+--------|
| | 60h | On | On | On | Off | Off |
|----+--------+----------+--------+--------+--------+--------|
| | 80h | On | On | Off | On | On |
|----+--------+----------+--------+--------+--------+--------|
| ยป | 300h | Off | Off | On | On | On |
|----+--------+----------+--------+--------+--------+--------|
| | 360h | Off | Off | On | Off | Off |
|----+--------+----------+--------+--------+--------+--------|
| | 380h | Off | Off | Off | On | On |
|----+--------+----------+--------+--------+--------+--------|
| | 3A0h | Off | Off | Off | On | Off |
|----+--------+----------+--------+--------+--------+--------|
| | 3C0h | Off | Off | Off | Off | On |
|----+--------+----------+--------+--------+--------+--------|
| | 3E0h | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Note: A total of 32 base address settings are |
| available. The switches are a binary representation |
| of the decimal memory addresses. SW1/10 is the Most |
| Significant Bit and switch SW1/5 is the Least |
| Significant Bit. The switches have the following |
| decimal values: SW1/5=512, SW1/4=256, SW1/3=128, |
| SW1/2=64, SW1/1=326. Turn off the switches and add |
| the values of the switches to 512 and convert to |
| hexadecimal to obtain the correct memory address. |
| (Off=1, On=0) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP3 |
|----------------------------+-------------------------------|
| IRQ2 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| IRQ3 | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| IRQ4 | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| IRQ5 | Pins 7 & 8 closed |
+------------------------------------------------------------+