WESTERN DIGITAL CORPORATION
WD1003V-MM1/MM2, WD1006V-MM1/MM2
Replaces the WD1003-WAH/WA2
and WD1006-WAH/WA2 respectively
Data bus: 16-bit, PC/AT
Size: Full-length, full-height card
Hard drives supported: Two MFM ST506/412 drives
Floppy drives supported: WD100xV-MM2:Two 360KB, 720KB, 1.2MB, or 1.44MB
WD100xV-MM1:None
Maximum heads/cyl.: 16 heads and 2048 cylinders
| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 34-pin data cable connector-floppy drive  | 
 J1  | 
| 
 20-pin data cable connector-drive 1  | 
 J3  | 
| 
 20-pin data cable connector-drive 0  | 
 J4  | 
| 
 34-pin control cable connector-hard drive  | 
 J5  | 
| 
 4-pin connector-drive active LED  | 
 J6  | 
| 
 USER CONFIGURABLE SETTINGS  | ||
| 
 Function  | 
 Location  | 
 Setting  | 
| 
 Hard drives in latched mode  | 
 W1/jumper 1  | 
 open  | 
| 
 Hard drives in non-latched mode  | 
 W1/jumper 1  | 
 closed  | 
| 
 4 byte ECC  | 
 W1/jumper 2  | 
 open  | 
| 
 7 byte ECC  | 
 W1/jumper 2  | 
 closed  | 
| 
 Caching enabled  | 
 W1/jumper 3  | 
 open  | 
| 
 Caching disabled  | 
 W1/jumper 3  | 
 closed  | 
| 
 Not WD1003-WAH/WA2 compatible  | 
 W1/jumper 4  | 
 open  | 
| 
 WD1003-WAH/WA2 compatible  | 
 W1/jumper 4  | 
 closed  | 
| 
 Hard drive port address is 1F0-1F7h  | 
 W3  | 
 open  | 
| 
 Hard drive port address is 170-177h  | 
 W3  | 
 closed  | 
| 
 Floppy drive port address is 3F0-3F7h  | 
 W4  | 
 open  | 
| 
 Floppy drive port address is 370-377h  | 
 W4  | 
 closed  | 
| 
 Single speed floppy drive supported  | 
 W5  | 
 open  | 
| 
 Dual speed floppy drive supported  | 
 W5  | 
 closed  | 
| 
 Bracket ground option disabled  | 
 W6  | 
 open  | 
| 
 Bracket to board ground connected  | 
 W6  | 
 closed  |