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ESDI DISK CONTROLLER BOARD
NEC TECHNOLOGIES, INC.
ESDI DISK CONTROLLER BOARD
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Data bus:
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16-bit ISA
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Size:
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Three-quarter length, full-height card
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Hard drive supported:
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Two ESDI drives
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Floppy drives supported:
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None
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CONNECTIONS
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Function
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Location
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4-pin connector - drive active LED
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J1
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20-pin data cable connector
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J2
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20-pin data cable connector
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J3
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34-pin cable control connector - hard drive
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J4
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USER CONFIGURABLE SETTINGS
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Function
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Location
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Setting
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Cache enabled
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W1/A
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open
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Cache disabled
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W1/A
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closed
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4-byte ECC mode select
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W1/B
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open
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7-byte ECC mode select
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W1/B
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closed
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Translation enabled
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W1/C
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open
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Translation disabled
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W1/C
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closed
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Factory configured - do not alter
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W1/D
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open
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Physical mode select
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W1/E
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open
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35 sector-per-track mode select
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W1/E
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closed
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Alternate sector disabled
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W1/F
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open
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Alternate sector enabled
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W1/F
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closed
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IRQ14 select
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W7
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pins 1 & 2 closed
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IRQ15 select
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W7
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pins 2 & 3 closed
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Primary address is 1FXh
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W12
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open
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Secondary address is 17Xh
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W12
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closed
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