WESTERN DIGITAL CORPORATION
WDAT-240
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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
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CONNECTIONS | |
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Function |
Location |
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34-pin data cable connector-floppy drive |
J1 |
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40-pin AT Interface (IDE) control cable connector-internal |
J2 |
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DIRQ14 SIGNAL SELECT | |||
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Function |
Jumper W1 |
Jumper W1A | |
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DIRQ14 signal passed to host computer |
open |
closed | |
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Conner CP342/CP3022 in true IBM AT |
closed |
open | |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Floppy controller enabled |
W2 |
closed | |
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Floppy controller disabled |
W2 |
open | |
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Floppy drive port address is 3F0-3F7h |
W2A |
open | |
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Floppy drive port address is 370-377h |
W2A |
closed | |
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Single speed floppy drive |
W3 |
open | |
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Dual-speed floppy drive |
W3 |
closed | |
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Logic ground independent of chassis |
W4 |
open | |
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Logic ground connected to chassis |
W4 |
closed | |