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AMS 1100SR4

AMERICAN MULTISOURCE

AMS 1100SR4

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Two RLL ST506/ST412 drive

Floppy drives supported: Four 360KB, 720KB, 1.2MB, and 1.44MB

Sector Interleave: 1:1

CONNECTIONS

Function

Location

34-pin control cable connector-hard drive

J1

20-pin data cable connector-drive 0

J2

20-pin data cable connector-drive 1

J3

34-pin data cable connector-floppy drives 1 & 2

J4

4-pin connector-drive active LED

J5

34-pin data cable connector-floppy drives 3 & 4

J6

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Floppy drive address 3F0-3F7h

W3

open

 

Floppy drive address 370-377h

W3

closed

Hard drive address 1F0-1F7h

W4

open

 

Hard drive address 170-177h

W4

closed

Floppy drive disabled

W5 & W7

open

 

Floppy drive enabled

W5 & W7

closed

BIOS disabled

W6

open

 

BIOS enabled

W6

closed

BIOS ADDRESS

Address

W8

W9

C8000h

closed

closed

CC000h

closed

open

D0000h

open

closed

D4000h

open

open

HARD DRIVE CONFIGURATION

Function

W1

W2

Enabled

open

pins 1 & 2 closed

Disabled

closed

pins 2 & 3 closed