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PCCOM 16-BIT ISA 8-PORT RS-232/422 (OLD)

DECISION COMPUTER INTERNATIONAL CO., LTD.

PCCOM 16-BIT ISA 8-PORT RS-232/422 (OLD)

Card Type

Serial

Chipset

GoldStar

I/O Options

Serial ports (8)

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

Function

Label

Serial ports via DB-78 port

J1

Daisy chain connector (see pinout below)

JP1

Note:Standard DB-25 serial ports are provided on an included adapter cable.

JP1 PINOUT

Function

Pin

Function

Pin

Daisy chain in

1

Daisy chain out

3

Daisy chain in

2

Daisy chain out

4

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Interrupt master

JP3

Closed

 

Interrupt slave

JP3

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

SW2/7

SW2/8

IRQ3

On

Off

Off

Off

Off

Off

Off

Off

IRQ4

Off

On

Off

Off

Off

Off

Off

Off

IRQ5

Off

Off

On

Off

Off

Off

Off

Off

IRQ7

Off

Off

Off

On

Off

Off

Off

Off

IRQ10

Off

Off

Off

Off

On

Off

Off

Off

IRQ11

Off

Off

Off

Off

Off

On

Off

Off

IRQ12

Off

Off

Off

Off

Off

Off

On

Off

IRQ15

Off

Off

Off

Off

Off

Off

Off

On

Slave

Off

Off

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)

WAIT STATES

Setting

JP4/A

JP4/B

JP4/C

JP4/D

0

Closed

Open

Open

Open

1

Open

Closed

Open

Open

2

Open

Open

Closed

Open

3

Open

Open

Open

Closed