...because we can't all be on the bleeding edge...





IDC-747

EASTERN ELECTRONICS COMPANY

IDC-747

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Four IDE (AT) Interface drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS

Function

Location

34-pin data cable connector-floppy drives

CN1

40-pin IDE (AT) Interface connector-drives 1 & 2

CN2

40-pin IDE (AT) Interface connector-drives 3 & 4

CN3

4-pin connector-drive active LED

CN4

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Normal I/O decoder speed

JP1

pins 1 & 2 closed

 

Fast I/O decoder speed

JP1

pins 2 & 3 closed

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

JP3/jumper 4

closed

 

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

JP3/jumper 4

open

Floppy drive enabled

JP3/jumper 5

closed

 

Floppy drive disabled

JP3/jumper 5

open

Factory configured - do not alter

JP3/jumper 6

closed

Factory configured - do not alter

JP3/jumper 7

N/A

BIOS ADDRESS

Address

JP3/jumper 1

JP3/jumper 2

JP3/jumper 3

D800h

open

closed

closed

 

D000h

open

open

closed

 

C800h

open

closed

open

 

Disabled

open

open

open

INTERRUPT REQUEST

IRQ

JP2/jumper 1

JP2/jumper 2

JP2/jumper 3

JP2/jumper 4

 

IRQ5

closed

open

open

open

 

IRQ12

open

closed

open

open

IRQ14

open

open

closed

open

 

IRQ15

open

open

open

closed

MISCELLANEOUS TECHNICAL NOTES

This card's cache feature supports 256KB, 1MB, or 4MB SIMM's; making the maximum cache capacity 16MB. The same size SIMM must be installed in each socket of a bank and Bank 0 must be filled for proper operation of the controller.