FLOPPY I/O CONTROLLER IO card Settings and Configuration

Card Type

Floppy drive controller

I/O Options

floppy drive interface, parallel port, serial port

Floppy drives supported

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

Data Bus

8-bit ISA

CONNECTIONS

Function

Label

Function

Label

Serial port

CN1

Floppy drive interface

CN3

Parallel port

CN2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

E1

Unidentified

»

Factory configured - do not alter

E2

Unidentified

»

Factory configured - do not alter

E3

Unidentified

»

Factory configured - do not alter

E4

Closed

PARALLEL PORT ADDRESS SELECTION

Setting

SW1/3

SW1/4

»

LPT1

On

Off

LPT2

Off

On

Disabled

Off

Off

SERIAL PORT ADDRESS SELECTION

Setting

SW1/1

SW1/2

SW1/7

SW1/8

»

COM1

On

Off

Off

On

COM2

Off

On

On

Off

Disabled

Off

Off

Off

Off

PARALLEL PORT INTERRUPT SELECTION

Assignment

Interrupt

SW1/1

SW1/2

SW1/5

LPT1(3BCh)

IRQ7

On

Off

Off

LPT(378h)

IRQ6

Off

On

Off

LPT3(278h)

IRQ5

Off

Off

On

N/A

Disabled

Off

Off

Off

SERIAL PORT INTERRUPT SELECTION

Assignment

Interrupt

SW1/3

SW1/4

SW1/7

COM1(3F8h)

IRQ14

On

Off

On

COM2(2F8h)

IRQ3

Off

On

On

COM3(2A0h)

None

Off

On

Off

N/A

Disabled

Off

Off

Off

FLOPPY DRIVE SELECTION

Function

SW1/5

SW1/6

»

Floppy drive enabled

On

On

Floppy drive disabled

Off

Off

Note : When floppy drive is enabled, switch settings control the parallel port; when disabled, the settings affect the serial port.