AL-7048 Hard Disk/Floppy Controller Settings and Configuration

Data bus:

32-bit, VL-bus

Size:

Full-length, full-height card

Hard drive supported:

Up to seven SCSI devices, and two IDE (AT) interface drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

4-pin connector - drive active LED

CN1

50-pin SCSI-2 connector - internal

CN2

40-pin IDE (AT) interface connector - port 1

CN3

34-pin control cabled connector - floppy drive 1

CN4

34-pin control cabled connector - floppy drive 2

CN5

10-pin serial port 2 - internal

CN6

26-pin parallel port connector

CN7

9-pin serial port 1 - external

CN8

50-pin SCSI-2 connector - external

CN9

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Factory configured - do not alter

SW1/9

N/A

»

Multiple drive support enabled

SW1/10

on

Multiple drive support disabled

SW1/10

off

»

Factory configured - do not alter

SW3/1

N/A

»

Standard parallel port mode enabled

SW3/2

On

Enhanced parallel port mode enabled

SW3/2

off

»

Enhanced parallel port DMA1 enabled

SW3/3

on

Enhanced parallel port DMA3 enabled

SW3/3

off

»

SCSI synchronous negotiation enabled

SW3/4

on

SCSI synchronous negotiation disabled

SW3/4

off

»

Factory configured - do not alter

SW3/5

N/A

»

Factory configured - do not alter

SW3/6

N/A

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

16 transfers/BUS Grant enabled

SW3/7

on

2 transfers/BUS Grant enabled

SW3/7

off

»

32-bit VESA mode enabled

SW3/8

on

16-bit VESA mode enabled

SW3/8

off

»

Boot ROM enabled

SW3/9

on

Boot ROM disabled

SW3/9

off

»

Active termination enabled

SW3/10

on

Active termination disabled

SW3/10

off

BIOS ADDRESS

Address

SW1/1

SW1/2

SW1/3

»

C800h

on

on

on

CC00h

off

on

on

D000h

on

off

on

D400h

off

off

on

D800h

on

on

off

DC00h

off

on

off

Disabled

on

off

off

Disabled

off

off

off

I/O ADDRESS

ISA Address

VESA Address

SW1/4

SW1/5

»

110h

E800h

on

on

200h

D800h

off

on

220h

C800h

on

off

100h

F800h

off

off

IRQ SELECT

IRQ

SW1/6

SW1/7

SW1/8

IRQ9

off

on

off

IRQ10

on

on

off

IRQ11

off

off

on

IRQ12

on

off

on

IRQ14

off

on

on

IRQ15

on

on

on

Disabled

on

off

off

Disabled

off

off

off

SERIAL PORT 1 CONFIGURATION

COM/Address

SW2/1

SW2/2

»

COM1/3F8h

off

off

COM2/2F8h

on

off

COM3/3E8h

off

on

Disabled

on

on

SERIAL PORT 2 CONFIGURATION

COM/Address

SW2/3

SW2/4

»

COM2/2F8h

off

off

COM1/3F8h

on

off

COM4/2E8h

off

on

Disabled

on

on

PARALLEL PORT CONFIGURATION

LPT/Address

SW2/5

SW2/6

»

LPT1/378h

on

off

LPT2/278h

off

off

Disabled

on

on

IDE PORT

Setting

SW2/7

SW2/8

»

Primary controller enabled

off

on

Secondary controller enabled

off

off

Disabled

on

on

FLOPPY DRIVE

Setting

SW2/9

SW2/10

»

Primary floppy drive enabled

off

on

Secondary floppy drive enabled

off

off

Disabled

on

on

Disabled

on

off