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RLL FLOPPY/HARD DISK CONTROLLER

ADVANCED LOGIC RESEARCH, INC.

RLL FLOPPY/HARD DISK CONTROLLER

Card Type

Hard drive controller

Hard Drives supported

Two ST-506/412(RLL) drives

Floppy drives supported

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

Data Bus

16-bit ISA

Card Size

Three-quarter length, full-height

   

CONNECTIONS

Function

Label

Function

Label

34-pin cable connector - floppy drive

J1

20-pin data cable connector - drive 1

J4

34-pin control cable connector - hard drive

J2

4-pin connector - drive active LED

J5

20-pin data cable connector - drive 0

J3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

W1

Open

Primary port address is 1F0h, 3F2h

W2

Open

 

Unidentified

W2

Closed

Secondary port address is 170h, 372h

W3

Open

 

Unidentified

W3

Closed

Initial data Rate control 500-KHZ enabled

W4

Open

 

Unidentified

W4

Closed

Hardware select mode enabled

W5

Closed

 

Hardware select mode disabled

W5

Open

Factory configured - do not alter

W6

Pins 1 & 2 open, 3 & 4, 5 & 6 closed

Floppy precompensation control - unidentified

W7

Open

 

Unidentified

W7

Closed

16K PROM enabled

W8

Closed

 

Unidentified

W8

Open

PROM address is C8000h

W9

Open

 

Unidentified

W9

Closed

PROM enabled

W10

Closed

 

PROM disabled

W10

Open