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HARDCACHE/SCSI

COMPUADD, INC.

HARDCACHE/SCSI

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Two SCSI drives, up to 5 other SCSI devices

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

CONNECTIONS

Function

Location

50-pin SCSI connector-external

CN1

4-pin connector-drive active LED

J1

34-pin data cable connector-floppy drive

J2

50-pin SCSI connector-internal

J3

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Block Data Transfer mode

SW1/switch 1

on

 

IRQ-Paced Data Transfer mode

SW1/switch 1

off

Read config. sector on drive 0

SW1/switch 2

on

 

Read config. data in firmware

SW1/switch 2

off

Floppy drive address 3F0-3F7h

SW1/switch 3

off

 

Floppy drive address 370-377h

SW1/switch 3

on

Floppy drive enabled

SW1/switch 4

off

 

Floppy drive disabled

SW1/switch 4

on

Single-speed floppy drive supported

SW1/switch 5

off

 

Dual-speed floppy drive supported

SW1/switch 5

on

BIOS enabled

SW1/switch 6

on

 

BIOS disabled

SW1/switch 6

off

BIOS address C800-C9FFh

SW2/switch 1

off

 

BIOS address CA00-CBFFh

SW2/switch 1

on

Hard drive address 1F0-1F7h

SW2/switch 2

off

 

Hard drive address 170-177h

SW2/switch 2

on

256KB SIMM's supported

SW2/switch 6

on

 

1MB SIMM's supported

SW2/switch 6

off

Hard Drive Interrupt is IRQ14

W1

pins 1 & 2 closed

 

Hard Drive Interrupt is IRQ10

W1

pins 2 & 3 closed

SCSI ADDRESS

SCSI ID

SW2/switch 3

SW2/switch 4

SW2/switch 5

 

0

off

off

off

 

1

off

off

on

 

2

off

on

off

 

3

off

on

on

 

4

on

off

off

 

5

on

off

on

 

6

on

on

off

7

on

on

on