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IDC-767 DISK ACCELERATOR

EASTERN ELECTRONICS COMPANY

IDC-767 DISK ACCELERATOR

Data bus:

32-bit, VL-bus

Size:

Three/quarter-length, full-height card

Hard drive supported:

Four IDE (AT) Interface drives

Floppy drives supported:

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS

Function

Location

40-pin IDE(AT) Interface connector - IDE-0

J1

40-pin IDE(AT) Interface connector - IDE-1

J2

34-pin control cable connector - floppy drive

J3

4-pin connector - Drive active LED

JP1

USER CONFIGURABLE SETTINGS

Function

Location

Setting

IDE-0 (J1) read signal damping enabled

JP3

open

 

IDE-0 (J1) read signal damping disabled

JP3

closed

IDE-1 (J2) read signal damping enabled

JP4

open

 

IDE-1 (J2) read signal damping disabled

JP4

closed

IDE-0 (J1) write signal damping enabled

JP5

open

 

IDE-0 (J1) write signal damping disabled

JP5

closed

IDE-1 (J2) write signal damping enabled

JP6

open

 

IDE-1 (J2) write signal damping disabled

JP6

closed

Hard drive port address is 1F0-1F7, 3F6 & 3F7h

JP7/jumper 4

closed

 

Hard drive port address is 170-177, 376 & 377h

JP7/jumper 4

open

Floppy drive enabled

JP7/jumper 5

closed

 

Floppy drive disabled

JP7/jumper 5

open

Normal operation

JP7/jumper 6

closed

 

Test mode enabled

JP7/jumper 6

open

INTERRUPT REQUEST

IRQ

JP2/jumper 1

JP2/jumper 2

JP2/jumper 3

JP2/jumper 4

 

5

closed

open

open

open

 

12

open

closed

open

open

14

open

open

closed

open

 

15

open

open

open

closed

BIOS ADDRESS

Address

JP7/Jumper 1

JP7/Jumper 2

JP7/Jumper 3

DC000h

closed

closed

closed

D8000h

open

closed

closed

D4000h

closed

open

closed

D0000h

open

open

closed

CC000h

closed

closed

open

C8000h

open

closed

open

Disabled

n/a

open

open

LOCAL BUS CLOCK SKEW

 

Select

JP8

Fastest skew

pins 2 & 5 closed

 

Medium skew

pins 1 & 2 closed

 

Slowest skew

pins 2 & 3 closed