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AHA-1540C, AHA-1542C

ADAPTEC, INC.

AHA-1540C, AHA-1542C

Data bus:

16-bit, ISA

Size:

Half-length, full-height card

Hard drive supported:

Up to seven SCSI devices

Floppy drives supported:

360KB, 720KB, 1.2MB, or 1.44MB (2)

CONNECTIONS

Function

Location

SCSI drive interface (50 pin) internal

CN1

SCSI drive interface (50 pin) external

CN2

Floppy drive interface (AHA-1542C only)

CN3

Hard drive activity LED

CN4

USER CONFIGURABLE SETTINGS

Function

Location

Setting

SCSI Termination set with configuration software

SW1/switch 1

off

 

SCSI Termination enabled

SW1/switch 1

on

Floppy drive enabled

SW1/switch 5

off

 

Floppy drive disabled

SW1/switch 5

on

I/O PORT ADDRESS CONFIGURATION

Address

SW1/switch 2

SW1/switch 3

SW1/switch 4

330-333h

off

off

off

334-337h

on

off

off

230-233h

off

on

off

234-237h

on

on

off

130-133h

off

off

on

134-137h

on

off

on

Reserved

off

on

on

Reserved

on

on

on

BIOS ADDRESS CONFIGURATION

Address

SW1/switch 6

SW1/switch 7

SW1/switch 8

DC000h

off

off

off

D8000h

on

off

off

D4000h

off

on

off

D0000h

on

on

off

CC000h

off

off

on

C8000h

on

off

on

Reserved

off

on

on

Disabled

on

on

on