UNIDENTIFIED

MAGIC I/O PM-540G

Data bus: 16-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two IDE (AT) Interface drives

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

CONNECTIONS

Function

Location

4-pin connector-drive active LED

J1

40-pin IDE Interface (AT) connector

J2

34-pin control cable connector-floppy drive

J3

9-pin serial port 2 (COM2)-internal

J4

9-pin serial port 1 (COM1)-external

J5

25-pin parallel port-external

J6

15-pin game port-internal

J7

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Floppy drive enabled

JP1 and JP2

closed

 

Floppy drive disabled

JP1 and JP2

open

PARALLEL PORT (CN6) CONFIGURATION

LPT

JP3/pins 1 & 2

JP3/pins 3 & 4

LPT1 (378-37Fh)

open

closed

 

LPT2 (278-27Fh)

closed

open

 

Disabled

open

open

SERIAL PORT 2 (CN4) CONFIGURATION

COM

JP3/pins 5 & 6

JP3/pins 7 & 8

COM2 (2F8-2FFh)

open

closed

 

COM4 (2E8-2EFh)

closed

open

 

COM3 (3E8-3EFh)

closed

closed

 

Disabled

open

open

SERIAL PORT 1 (CN5) CONFIGURATION

COM

JP3/pins 9 & 10

JP3/pins 11 & 12

COM1 (3F8-3FFh)

open

closed

 

COM3 (3E8-3EFh)

closed

open

 

COM4 (2E8-2EFh)

closed

closed

 

Disabled

open

open

SERIAL PORT 1 (CN5) INTERRUPT REQUEST

IRQ

JP4/pins 1 & 2

JP4/pins 3 & 4

JP4/pins 5 & 6

IRQ4

closed

open

open

 

IRQ5

open

closed

open

 

IRQ9

open

open

closed

SERIAL PORT 2 (CN4) INTERRUPT REQUEST

IRQ

JP4/pins 7 & 8

JP4/pins 9 & 10

JP4/pin 11 & 12

IRQ3

closed

open

open

 

IRQ9

open

closed

open

 

IRQ5

open

open

closed

PARALLEL PORT (CN6) INTERRUPT REQUEST

IRQ

JP4/pins 13 & 14

JP4/pins 15 & 16

IRQ7

open

closed

 

IRQ5

closed

open

 

Disabled

open

open