DECISION COMPUTER INTERNATIONAL CO., LTD

WATCHDOG I

Card Type

Digital I/O card

Chip Set

Unidentified

I/O Options

Reset switch

Data Bus

8-bit ISA

Card Size

Half-length, full-height card

CONNECTIONS

Function

Label

Function

Label

Reset connector

JP3

Reset button connector

JP4


REFRESH TIMER CONTROL

Setting

JP5

62.5ms

Pins 1 & 2 closed

125ms

Pins 3 & 4 closed

250ms

Pins 5 & 6 closed

500ms

Pins 7 & 8 closed

1sec

Pins 9 & 10 closed

2sec

Pins 11 & 12 closed

4sec

Pins 13 & 14 closed

8sec

Pins 15 & 16 closed

16sec

Pins 17 & 18 closed

32sec

Pins 19 & 20 closed

64sec

Pins 21 & 22 closed


BASE I/O ADDRESS SELECTION

Setting

JP1/A

JP1/B

JP1/C

JP1/D

JP1/E

JP1/F

000h

Closed

Closed

Closed

Closed

Closed

Closed

002h

Closed

Closed

Closed

Closed

Closed

Closed

004h

Closed

Closed

Closed

Closed

Closed

Closed

300h

Closed

Closed

Open

Open

Closed

Closed

FFAh

Open

Open

Open

Open

Open

Open

FFCh

Open

Open

Open

Open

Open

Open

FFEh

Open

Open

Open

Open

Open

Open


BASE I/O ADDRESS SELECTION (CON'T)

Setting

JP1/G

JP1/H

JP1/I

JP1/J

JP1/K

000h

Closed

Closed

Closed

Closed

Closed

002h

Closed

Closed

Closed

Closed

Open

004h

Closed

Closed

Closed

Open

Closed

300h

Closed

Closed

Closed

Closed

Closed

FFAh

Open

Open

Open

Closed

Open

FFCh

Open

Open

Open

Open

Closed

FFEh

Open

Open

Open

Open

Open

Note:

A total of 255 base address settings are available. The pins are a binary representation of the decimal memory addresses. JP1/A is the Most Significant Bit and switch JP1/K is the Least Significant Bit. The switches have the following decimal values: JP1/A=32768, JP1/B=16384, JP1/C=8192, JP1/D=4096, JP1/E=2048, JP1/F=1024, JP1/G=512, JP1/H=256, JP1/I=128, JP1/J=64, JP1/K=32. Open the pins and add the values of the pins to obtain the correct memory address. (Open=1, Closed=0)