DECISION COMPUTER INTERNATIONAL CO., LTD.
PCCOM 8-BIT ISA 8-PORT DB-37 RS-232/422
|
Card Type |
Serial |
|
Chipset |
GoldStar |
|
I/O Options |
Serial ports (8) |
|
Data Bus |
8-bit ISA |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Serial ports via DB-37 port |
J1 |
Daisy chain connector (see pinout below) |
J3 |
|
Unidentified |
J2 | ||
|
Note:Standard DB-25 serial ports are provided on an included adapter cable. | |||
|
J3 PINOUT | |||
|
Function |
Pin |
Function |
Pin |
|
Daisy chain out |
1 |
Daisy chain in |
3 |
|
Daisy chain out |
2 |
Daisy chain in |
4 |
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
Interrupt master |
JP1 |
Closed | |
|
Interrupt slave |
JP1 |
Open | |
|
Factory configured - do not alter |
SW3/7 |
On | |
|
Interrupt vector enabled |
SW3/8 |
Off | |
|
Interrupt vector disabled |
SW3/8 |
On | |
|
Note:Only one board per system should be set to interrupt master. | |||
|
BASE I/O ADDRESS | ||||
|
Setting |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
|
000h |
On |
On |
On |
On |
|
040h |
On |
On |
On |
Off |
|
080h |
On |
On |
Off |
On |
|
0C0h |
On |
On |
Off |
Off |
|
100h |
On |
Off |
On |
On |
|
140h |
On |
Off |
On |
Off |
|
180h |
On |
Off |
Off |
On |
|
1C0h |
On |
Off |
Off |
Off |
|
200h |
Off |
On |
On |
On |
|
240h |
Off |
On |
On |
Off |
|
280h |
Off |
On |
Off |
On |
|
2C0h |
Off |
On |
Off |
Off |
|
300h |
Off |
Off |
On |
On |
|
340h |
Off |
Off |
On |
Off |
|
380h |
Off |
Off |
Off |
On |
|
3C0h |
Off |
Off |
Off |
Off |
|
INTERRUPT | ||||||
|
Setting |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 |
|
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 |
|
Slave |
Off |
Off |
Off |
Off |
Off |
Off |
|
INTERRUPT VECTOR | ||||||
|
Setting |
SW3/1 |
SW3/2 |
SW3/3 |
SW3/4 |
SW3/5 |
SW3/6 |
|
000h |
On |
On |
On |
On |
On |
On |
|
010h |
On |
On |
On |
On |
On |
Off |
|
020h |
On |
On |
On |
On |
Off |
On |
|
030h |
On |
On |
On |
On |
Off |
Off |
|
040h |
On |
On |
On |
Off |
On |
On |
|
3B0h |
Off |
Off |
Off |
On |
Off |
Off |
|
3C0h |
Off |
Off |
Off |
Off |
On |
On |
|
3D0h |
Off |
Off |
Off |
Off |
On |
Off |
|
3E0h |
Off |
Off |
Off |
Off |
Off |
On |
|
3F0h |
Off |
Off |
Off |
Off |
Off |
Off |
|
Note:A total of 64 vector address settings are available. The switches are a binary representation of the decimal memory addresses. SW3/1 is the Most Significant Bit and switch SW3/6 is the Least Significant Bit. The switches have the following decimal values: SW3/1=512, SW3/2=256, SW3/3=128, SW3/4=64, SW3/5=32, SW3/6=16. Turn off the switches and add the values of the switches that are off to obtain the correct address. (Off=1, On=0) | ||||||