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ESDI DISK CONTROLLER BOARD

NEC TECHNOLOGIES, INC.

ESDI DISK CONTROLLER BOARD

Data bus:

16-bit ISA

Size:

Three-quarter length, full-height card

Hard drive supported:

Two ESDI drives

Floppy drives supported:

None

CONNECTIONS

Function

Location

4-pin connector - drive active LED

J1

20-pin data cable connector

J2

20-pin data cable connector

J3

34-pin cable control connector - hard drive

J4

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Cache enabled

W1/A

open

 

Cache disabled

W1/A

closed

4-byte ECC mode select

W1/B

open

 

7-byte ECC mode select

W1/B

closed

Translation enabled

W1/C

open

 

Translation disabled

W1/C

closed

Factory configured - do not alter

W1/D

open

Physical mode select

W1/E

open

 

35 sector-per-track mode select

W1/E

closed

Alternate sector disabled

W1/F

open

 

Alternate sector enabled

W1/F

closed

IRQ14 select

W7

pins 1 & 2 closed

 

IRQ15 select

W7

pins 2 & 3 closed

Primary address is 1FXh

W12

open

 

Secondary address is 17Xh

W12

closed