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PCCOM 16-BIT ISA 2 PORT RS-232

DECISION COMPUTER INTERNATIONAL CO., LTD.

PCCOM 16-BIT ISA 2 PORT RS-232

Card Type

Serial

Chip Set

GoldStar

I/O Options

Serial ports (2)

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

Function

Label

Serial port 1

P1

Serial port 2

P2

USER CONFIGURABLE SETTINGS

Setting

Label

Position

»

Port 1 enabled

JP1/H

Closed

 

Port 1 disabled

JP1/H

Open

»

Port 2 enabled

JP2/H

Closed

 

Port 2 disabled

JP2/H

Open

       

MAXIMUM BUS SPEED

Setting

JP6/A

JP6/B

JP6/C

JP6/D

8MHz

Closed

Open

Open

Open

12MHz

Open

Closed

Open

Open

25MHz

Open

Open

Closed

Open

33MHz

Open

Open

Open

Closed

INTERRUPTS

Setting

JP4/A

JP4/B

JP4/C

JP4/D

JP4/E

JP4/F

 

IR/FONT>

Closed

Open

Open

Open

Open

Open

 

IRQ3

Open

Closed

Open

Open

Open

Open

 

IRQ4

Open

Open

Closed

Open

Open

Open

»

IRQ5

Open

Open

Open

Closed

Open

Open

 

IRQ7

Open

Open

Open

Open

Closed

Open

 

IRQ10

Open

Open

Open

Open

Open

Closed

 

IRQ11

Open

Open

Open

Open

Open

Open

 

IRQ12

Open

Open

Open

Open

Open

Open

 

IRQ14

Open

Open

Open

Open

Open

Open

 

IRQ15

Open

Open

Open

Open

Open

Open

INTERRUPTS (CON’T)

Setting

JP4/G

JP4/H

JP4/I

JP4/J

JP4/K

 

IR/FONT>

Open

Open

Open

Open

Open

 

IRQ3

Open

Open

Open

Open

Open

 

IRQ4

Open

Open

Open

Open

Open

»

IRQ5

Open

Open

Open

Open

Open

 

IRQ7

Open

Open

Open

Open

Open

 

IRQ10

Closed

Open

Open

Open

Open

 

IRQ11

Open

Closed

Open

Open

Open

 

IRQ12

Open

Open

Closed

Open

Open

 

IRQ14

Open

Open

Open

Closed

Open

 

IRQ15

Open

Open

Open

Open

Closed

Note:The settings for JP3 and JP5 are identical to JP4. JP4 sets the interrupt for port 1, JP5 sets the interrupt for port 2, and JP3 sets the common interrupt. For JP3, set identical jumpers to both JP4 and JP5.

PORT 1 ADDRESS

Setting

JP1/A

JP1/B

JP1/C

JP1/D

JP1/E

JP1/F

JP1/G

 

000h

Closed

Closed

Closed

Closed

Closed

Closed

Closed

 

008h

Closed

Closed

Closed

Closed

Closed

Closed

Open

 

010h

Closed

Closed

Closed

Closed

Closed

Open

Closed

 

018h

Closed

Closed

Closed

Closed

Closed

Open

Open

 

020h

Closed

Closed

Closed

Closed

Open

Closed

Closed

»

2A0h

Open

Closed

Open

Closed

Open

Closed

Closed

 

3E0h

Open

Open

Open

Open

Open

Closed

Closed

 

3E8h

Open

Open

Open

Open

Open

Closed

Open

 

3F0h

Open

Open

Open

Open

Open

Open

Closed

 

3F8h

Open

Open

Open

Open

Open

Open

Open

Note:The settings for JP2 are identical to JP1. JP1 sets the address for port 1 and JP2 sets the address for port 2.

A total of 128 base address settings are available. The jumpers are a binary representation of the decimal memory addresses. JP1/A is the Most Significant Bit and jumper JP1/G is the Least Significant Bit. The jumpers have the following decimal values: JP1/A=512, JP1/B=256, JP1/C=128, JP1/D=64, JP1/E=32, JP1/F=16, JP1/G=8. Open the jumpers and add the values of the jumpers that are open to obtain the correct memory address. (Open=1, Closed=0)