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WDAT-240 Hard Disk/Floppy Controller Settings and Configuration






WESTERN DIGITAL CORPORATION

WDAT-240

Data bus: 16-bit, PC/AT

Size: Half-length, full-height card

Hard drives supported: Two IDE (AT) Interface drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

CONNECTIONS

Function

Location

34-pin data cable connector-floppy drive

J1

40-pin AT Interface (IDE) control cable connector-internal

J2

DIRQ14 SIGNAL SELECT

Function

Jumper W1

Jumper W1A

DIRQ14 signal passed to host computer

open

closed

 

Conner CP342/CP3022 in true IBM AT

closed

open

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Floppy controller enabled

W2

closed

 

Floppy controller disabled

W2

open

Floppy drive port address is 3F0-3F7h

W2A

open

 

Floppy drive port address is 370-377h

W2A

closed

Single speed floppy drive

W3

open

 

Dual-speed floppy drive

W3

closed

Logic ground independent of chassis

W4

open

 

Logic ground connected to chassis

W4

closed








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