TEXT View Source
# WESTERN DIGITAL CORPORATION
WD1003-RAH, WD1003-WAH
Replaced by the WD1003V-SR1
and WD1003V-MM1 respectively
+------------------------------------------------------------+
+------------------------------------------------------------+
Data bus: 16-bit, PC/AT
Size: Full-length, full-height card
Hard drives supported: WD1003-RAH: Two RLL ST506/412 drives
WD1003-WAH: Two MFM ST506/412 drives
Floppy drives supported: None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|------------------------------------------+-----------------|
| 34-pin data cable connector-hard drive | J1 |
|------------------------------------------+-----------------|
| 20-pin data cable connector-drive 0 | J2 |
|------------------------------------------+-----------------|
| 20-pin data cable connector-drive 1 | J3 |
|------------------------------------------+-----------------|
| 4-pin connector-drive active LED | J6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTING - WD1003-RAH |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| » | Auto deselect enabled (PC/AT) | W1 | closed |
|---+--------------------------------+----------+------------|
| | Auto deselect disabled | W1 | open |
| | (Compaq) | | |
|---+--------------------------------+----------+------------|
| » | Hard drive port address is | W2 | open |
| | 1F0-1F7 & 3F0-3F7h | | |
|---+--------------------------------+----------+------------|
| | Hard drive port address is | W2 | closed |
| | 170-177 & 370-377h | | |
|---+--------------------------------+----------+------------|
| | WD11C00C-22 chip at U8 or if | W3 | open |
| | W5/pins 2-3 closed | | |
|---+--------------------------------+----------+------------|
| | WD11C00-22 chip at U8 & | W3 | closed |
| | W5/pins 1-2 closed | | |
|---+--------------------------------+----------+------------|
| » | Drive 0 translation disabled | W4 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Drive 0 translation enabled | W4 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Write gate and drive select | W5 | pins 2 & 3 |
| | lines enabled | | closed |
| | | | |
| | only when drive is accessed | | |
|---+--------------------------------+----------+------------|
| | Write gate and drive select | W5 | pins 1 & 2 |
| | lines are disabled during | | closed |
| | power-up and when +5V is < | | |
| | +4.15V | | |
|---+--------------------------------+----------+------------|
| » | Drive 1 logical translation | W6 | pins 2 & 3 |
| | disabled | | closed |
|---+--------------------------------+----------+------------|
| | Drive 1 logical translation | W6 | pins 1 & 2 |
| | enabled | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS - WD1003-WAH |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| » | Auto deselect enabled (PC/AT) | W1 | closed |
|---+--------------------------------+----------+------------|
| | Auto deselect disabled | W1 | open |
| | (Compaq) | | |
|---+--------------------------------+----------+------------|
| » | Hard drive port address is | W2 | open |
| | 1F0-1F7 & 3F0-3F7 | | |
|---+--------------------------------+----------+------------|
| | Hard drive port address is | W2 | closed |
| | 170-177 & 370-377 | | |
|---+--------------------------------+----------+------------|
| | WD11C00A-22 chip at U8 or if | W3 | open |
| | W5/pins 2-3 closed | | |
|---+--------------------------------+----------+------------|
| | WD11C00-22 chip at U8 & | W3 | closed |
| | W5/pins 1-2 closed | | |
|---+--------------------------------+----------+------------|
| » | Ties firmware sense bit high | W4 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Supports 2 head, 612 cyl. | W4 | pins 1 & 2 |
| | second drive with tandard | | closed |
| | system setup for 4 head, 306 | | |
| | cyl. drive | | |
|---+--------------------------------+----------+------------|
| » | Write gate and drive select | W5 | pins 2 & 3 |
| | lines enabled | | closed |
| | | | |
| | only when drive is accessed | | |
|---+--------------------------------+----------+------------|
| | Write gate and drive select | W5 | pins 1 & 2 |
| | lines are disabled during | | closed |
| | power-up and when +5V is < | | |
| | +4.15V | | |
|---+--------------------------------+----------+------------|
| » | Ties input high, 35 m | W6 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Ties input low, 16 m | W6 | pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+