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ACB-2372B

ADAPTEC, INC.

ACB-2372B

Data bus:

16-bit, ISA

Size:

Half-length, full-height card

Hard drives supported:

2 RLL ST506 drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

34-pin data cable connector-floppy drive

J1

20-pin data cable connector-drive 1

J3

20-pin data cable connector-drive 0

J4

34-pin control cable connector-hard drive

J5

3-pin connector-drive active LED

J6

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Hard drive address 1F0-1F7h

J2- 1

open

 

Hard drive address 170-177h

J2- 1

closed

Floppy drive address 3F0-3F7h

J2- 2

open

 

Floppy drive address 370-377h

J2- 2

closed

Zero wait state disabled

J2- 3

open

 

Zero wait state enabled

J2- 3

closed

16msec step rate and recalibrate to 0

J2- 4

open

 

35msec step rate and recalibrate to 0 minus 1

J2- 4

closed

Read ahead cache enabled

J2- 5

open

 

Read ahead cache disabled

J2- 5

closed

Not used

J2-6

open

Not used

J2-7

open

BIOS address C800h

J7

pins 1 & 2 closed

 

BIOS address CC00h

J7

pins 2 & 3 closed

 

BIOS address disabled

J7/pin 2 to top pin

closed

Hard drive Interrupt is IRQ14

J13

pins 1 & 2 closed

 

Hard drive Interrupt is IRQ15

J13

pins 2 & 3 closed

Floppy drive DMA Request is DREQ2

J20

pins 1 & 2 closed

 

Floppy drive DMA Request is DREQ3

J20

pins 2 & 3 closed

Floppy drive DMA Acknowledge Is DACK2

J21

pins 1 & 2 closed

 

Floppy drive DMA Acknowledge is DACK3

J21

pins 2 & 3 closed

Floppy drive Interrupt is IRQ6

J22

pins 1 & 2 closed

 

Floppy drive Interrupt is IRQ10

J22

pins 2 & 3 closed