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# WESTERN DIGITAL CORPORATION
WD1007A-WX2
Card Type Hard drive controller card
Hard Drives supported Two ESDI drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, or 1.44MB
Data Bus 16-bit ISA
Card Size Three-quarter length, full-height card
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location | Function | Location |
|------------------+----------+-------------------+----------|
| 34-pin control | J1 | 34-pin data cable | J4 |
| cable | | connector-floppy | |
| connector-hard | | drive | |
| drive | | | |
|------------------+----------+-------------------+----------|
| 20-pin data | J2 | 4-pin | J5 |
| cable | | connector-drive | |
| connector-drive | | active LED | |
| 0 | | | |
|------------------+----------+-------------------+----------|
| 20-pin data | J3 | | |
| cable | | | |
| connector-drive | | | |
| 1 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| » | Factory configured (BIOS enabled) | W3 | Closed |
|---+------------------------------------+-------+-----------|
| » | Factory configured (floppy drive | W4 | Open |
| | controller) | | |
|---+------------------------------------+-------+-----------|
| » | Factory configured (single spindle | W5 | Open |
| | speed select) | | |
|---+------------------------------------+-------+-----------|
| » | Floppy drive port address is | W6 | Pins 2 & |
| | 3F0-3F7h | | 3 closed |
|---+------------------------------------+-------+-----------|
| | Floppy drive port address is | W6 | Pins 1 & |
| | 370-377h | | 2 closed |
|---+------------------------------------+-------+-----------|
| » | Factory configured (floppy drive | W7 | Pins 1 & |
| | select) | | 2 closed |
|---+------------------------------------+-------+-----------|
| » | WD1007 emulation mode | W8 | Open |
|---+------------------------------------+-------+-----------|
| | WD1005 emulation mode | W8 | Closed |
|---+------------------------------------+-------+-----------|
| » | Factory configured (chassis ground | W9 | Open |
| | disconnected) | | |
|---+------------------------------------+-------+-----------|
| » | Digital input register unlatched | W10 | Open |
|---+------------------------------------+-------+-----------|
| | Digital input register latched | W10 | Closed |
|---+------------------------------------+-------+-----------|
| » | Factory configured (floppy change | W11 | Closed |
| | enable with FDC option) | | |
|---+------------------------------------+-------+-----------|
| » | Factory configured (secondary | W12 | Open |
| | address select) | | |
|---+------------------------------------+-------+-----------|
| » | Floppy controller enabled | W13 | Uncut |
| | (diskette drive controller enabled | | |
| | in etch) | | |
|---+------------------------------------+-------+-----------|
| » | Sector translation enabled | W14 | Open |
|---+------------------------------------+-------+-----------|
| | Sector translation disabled | W14 | Closed |
|---+------------------------------------+-------+-----------|
| » | Factory configured (ECC length is | W15 | Open |
| | 4 bytes) | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | W1 | W2 |
|-------------------+--------------------+-------------------|
| » | C8000-C9FFFh | Pins 2 & 3 closed | Pins 2 & 3 closed |
|---+---------------+--------------------+-------------------|
| | CA000-CBFFFh | Pins 2 & 3 closed | Pins 1 & 2 closed |
|---+---------------+--------------------+-------------------|
| | CC000-CDFFFh | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+---------------+--------------------+-------------------|
| | CE000-CFFFFh | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL INFORMATION |
|------------------------------------------------------------|
| The WD1007A supports 1:1 interleave drives with up to 2048 |
| cylinders and 16 heads. |
+------------------------------------------------------------+