WESTERN DIGITAL CORPORATION
WD1003S-RAH
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Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two ST506/412 RLL drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB drives
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CONNECTIONS | |
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Function |
Location |
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34-pin control cable connector-hard drives |
CN1 |
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20-pin data cable connector-Drive 0 |
CN2 |
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20-pin data cable connector-Drive 1 |
CN3 |
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34-pin data cable connector-secondary hard drive (See JP7 settings) |
CN5 |
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4-pin connector-drive active LED |
CN6 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Auto deselect enabled (PC/AT) |
JP1 |
pins 1 & 2 closed | |
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Auto deselect disabled (Compaq) |
JP1 |
open | |
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Hard drive port address is 1F0-1F7h & 3F0-3F7h |
JP2 |
open | |
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Hard drive port address is 170-177h & 370-377h |
JP2 |
closed | |
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Drive 0 translation disabled |
JP4 |
pins 1 & 2 closed | |
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Drive 0 translation enabled* |
JP4 |
pins 2 & 3 closed | |
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Write Gate and drive select lines are enabled only when drive is accessed |
JP5 |
pins 2 & 3 closed | |
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Write Gate and drive select lines are disabled during power-up and when +5V is <+4.15V |
JP5 |
pins 1 & 2 closed | |
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Drive 1 translation disabled |
JP6 |
pins 1 & 2 closed | |
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Drive 1 translation enabled* |
JP6 |
pins 2 & 3 closed | |
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Input tied high |
JP8 |
pins 1 & 2 closed | |
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Seek to LZ (663) on seek > than 615. Step rate 0 (11 m m |
JP8 |
pins 2 & 3 closed | |
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Note: Translates 4 x 615 x 26 to 6 x 615 x 17 | |||
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DRIVE ATTACHMENT CONFIGURATION | |
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Function |
JP7 |
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Both drives daisy-chained from CN1, or Drive 0 is attached to CN1 and drive 1 is attached to CN5 |
pins 1 & 2 and 2 & 3 closed (vertically) |
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Drive 0 attached to CN5, Drive 1 attached to CN1 |
pins 1 & 3 and 2 & 4 closed (horizontally) |