WESTERN DIGITAL CORPORATION
WDAT-440
|
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
Special features: Two serial and one parallel port
CONNECTIONS | |
Function |
Location |
34-pin data cable connector-floppy drive |
J1 |
25-pin parallel port-external |
J2 |
40-pin IDE (AT) Interface control cable connector-internal |
J5 |
4 pin connector drive- active LED |
J6 |
9-pin serial port-external |
J8 |
DIRQ14 SIGNAL SELECT | |||
DIRQ |
W3 |
W3 | |
» |
DIRQ14 signal passed to host computer |
pins 1 & 2 open |
pins 2 & 3 closed |
Conner CP342/CP3022 in true IBM AT |
pins 1 & 2 closed |
pins 2 & 3 open |
WESTERN DIGITAL CORPORATION
WDAT-440
USER CONFIGURABLE SETTINGS | |||
Function |
Location |
Setting | |
» |
Floppy controller enabled |
W4 |
closed |
Floppy controller disabled |
W4 |
open | |
» |
Floppy drive port address is 3F0-3F7h |
W4 |
open |
Floppy drive port address is 370-377h |
W4 |
closed | |
» |
Single speed floppy drive |
W5 |
open |
Dual speed floppy drive |
W5 |
closed | |
» |
Logic ground independent of chassis |
W6 |
open |
Logic ground connected to chassis |
W6 |
closed | |
» |
Printer Interrupt is IRQ7 |
W7 |
pins 3 & 4 closed |
Printer Interrupt is IRQ5 |
W7 |
pins 1 & 2 closed | |
» |
COM2 Interrupt is IRQ3 |
W7 |
pins 5 & 6 closed |
COM2 Interrupt is IRQ4 |
W7 |
pins 5 & 7 closed | |
COM1 Interrupt is IRQ3 |
W7 |
pins 6 & 8 closed | |
COM1 Interrupt is IRQ4 |
W7 |
pins 7 & 8 closed | |
» |
Printer enabled |
W8/jumper 1 |
closed |
Printer disabled |
W8/jumper 1 |
open | |
» |
Printer address, LPT1 = 378-37Fh |
W8/jumper 2 |
open |
Printer address, LPT2 = 278-27Fh |
W8/jumper 2 |
closed | |
» |
External Serial Port = COM1 (3F8-3FFh) |
W8/jumper 3 |
closed |
External Serial Port = COM3 (3E8-3EFh) |
W8/jumper 4 |
closed | |
» |
Internal Serial Port = COM2 (2F8-2FFh) |
W8/jumper 5 |
closed |
Internal Serial Port = COM4 (2E8-2EFh) |
W8/jumper 6 |
closed | |
» |
Enable intelligent drive interface |
W9 |
closed |
Disable intelligent drive interface |
W9 |
open |