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ML-863

UNIDENTIFIED

ML-863

Data bus:

32-bit VL-bus

Size:

Three-quarter length, half-height card

Hard drive supported:

Two IDE(AT) drives

Floppy drives supported:

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS

Function

Location

25-pin parallel port - external

CN1

10-pin serial port 2 - internal

CN2

9-pin serial port 1 - external, 10-pin serial port 1 - internal

CN3

16-pin game port

CN4

34-pin cable connector - floppy drive

CN5

40-pin primary IDE(AT) connector

CN6

4-pin connector - drive active LED

CN7

USER CONFIGURABLE SETTINGS

Function

Location

Setting

IOCHRDY signal disabled

JP1

pins 1 & 2 closed

 

IOCHRDY signal enabled

JP1

pins 2 & 3 closed

CPU speed is 40,50 MHz

JP2

pins 1 & 2 closed

 

CPU speed is <=33MHz

JP2

pins 2 & 3 closed

IDE(AT) interface enabled

JP3

pins 1 & 2 closed

 

IDE(AT) interface disabled

JP3

pins 2 & 3 closed

Floppy drive interface enabled

JP4

pins 1 & 2 closed

 

Floppy drive interface disabled

JP4

pins 2 & 3 closed

USER CONFIGURABLE SETTINGS (CONTINUED)

Function

Location

Setting

Game port enabled

JP5

pins 1 & 2 closed

 

Game port disabled

JP5

pins 2 & 3 closed

Floppy drive select primary

JP7

pins 1 & 2 closed

 

Floppy drive select secondary

JP7

pins 2 & 3 closed

PARALLEL PORT ADDRESS SELECTION

LPT

JP6

JP12

LPT2(378h)

pins 1 & 2 closed

pins 1 & 2 closed

 

LPT3 (278h)

pins 2 & 3 closed

pins 1 & 2 closed

 

Disabled

N/A

pins 2 & 3 closed

SERIAL PORT 1 ADDRESS SELECTION

COM

JP10

JP11

COM1 (3F8h)

pins 1 & 2 closed

pins 1 & 2 closed

 

COM3 (3E8h)

pins 2 & 3 closed

pins 1 & 2 closed

 

Disabled

N/A

pins 2 & 3 closed

SERIAL PORT 2 ADDRESS SELECTION

COM

JP8

JP9

COM2 (2F8h)

pins 1 & 2 closed

pins 1 & 2 closed

 

COM4 (2E8h)

pins 2 & 3 closed

pins 1 & 2 closed

 

Disabled

N/A

pins 2 & 3 closed

IDE HARD DISK DRIVE SPEED SELECTION

Device Speed

JP13

JP14

Low - 600ns

pins 1 & 2 closed

pins 1 & 2 closed

 

Normal - 500ns

pins 1 & 2 closed

pins 2 & 3 closed

 

Fast speed - 383ns

pins 2 & 3 closed

pins 1 & 2 closed

 

Turbo speed - 240ns

pins 2 & 3 closed

pins 2 & 3 closed

MISCELLANEOUS TECHNICAL NOTES

The location of pin 1 is unidentified on jumpers JP1-JP12.