DECISION COMPUTER INTERNATIONAL CO., LTD.
PCCOM 8-BIT ISA 4-PORT RS-232
|
Card Type |
Serial |
|
Chipset |
Unidentified |
|
I/O Options |
Serial ports (4 RS-232) |
|
Data Bus |
8-bit ISA |
|
CONNECTIONS | |
|
Function |
Label |
|
Serial ports via DB-37 connector |
J |
|
Note:Standard DB-25 serial ports are provided on an included adapter cable. | |
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
Bus speed is less than 16MHz |
JP1 |
Pins 1 & 3 closed | |
|
Bus speed is 16MHz or greater |
JP1 |
Pins 2 & 4 closed | |
|
Normal operation |
JP3 |
Pins 1 & 2 closed | |
|
PC-MOS/386 mode |
JP3 |
Pins 2 & 3 closed | |
|
SERIAL PORT ADDRESSES/INTERRUPTS | |||||||
|
Option |
Port 1 |
IRQ |
Port 2 |
IRQ |
Port 3 |
Port 4 | |
|
1 |
3F8h (COM1:) |
4 |
2F8h (COM2:) |
3 |
1B0h |
1B8h | |
|
2 |
3F8h (COM1:) |
4 |
2F8h (COM2:) |
3 |
2B0h |
2B8h | |
|
3 |
1A0h |
SW1 |
1A8h |
SW1 |
1B0h |
1B8h | |
|
4 |
2A0h |
SW1 |
2A8h |
SW1 |
2B0h |
2B8h | |
|
Note:The interrupt for port 3 and port 4 is always set by SW1. | |||||||
|
SERIAL PORT ADDRESSES/INTERRUPTS (CONT) | ||||
|
Option |
JP2 |
SW1/7 |
SW1/8 | |
|
1 |
Pins 1 & 2, 3 & 4 closed |
On |
Off | |
|
2 |
Pins 1 & 2, 3 & 4 closed |
On |
On | |
|
3 |
Open |
Off |
Off | |
|
4 |
Open |
Off |
On | |
|
INTERRUPT | ||||||
|
Setting |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
|
IRQ2 |
On |
Off |
Off |
Off |
Off |
Off |
|
IRQ3 |
Off |
On |
Off |
Off |
Off |
Off |
|
IRQ4 |
Off |
Off |
On |
Off |
Off |
Off |
|
IRQ5 |
Off |
Off |
Off |
On |
Off |
Off |
|
IRQ6 |
Off |
Off |
Off |
Off |
On |
Off |
|
IRQ7 |
Off |
Off |
Off |
Off |
Off |
On |