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MIOXT-320 IO card Settings and Configuration






UNIDENTIFIED

MIOXT-320

Card Type

Multi I/O

Chipset Controller

Unidentified

I/O Options

Floppy drive interface, game port, parallel port, serial ports (2), clock (location unidentified)

Maximum Dram

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Game port

J1

Serial port 2

J4

Parallel port

J2

Floppy drive interface

J5

Serial port 1

J3

   

SERIAL PORT SELECTION

J3

J4

JP1

Port 1

Port 2

Pins 2 & 3 closed

Port 2

Port 1

Pins 1 & 2 closed

SERIAL PORT CONFIGURATION

Port 1

Port 2

SW1/1

SW1/2

SW1/3

SW1/4

COM1

COM2

On

Off

On

Off

COM1

COM4

On

Off

Off

On

COM1

Disabled

On

Off

Off

Off

COM3

COM2

Off

On

On

Off

COM3

COM4

Off

On

Off

On

COM3

Disabled

Off

On

Off

Off

Disabled

COM2

Off

Off

On

Off

Disabled

COM4

Off

Off

Off

On

Disabled

Disabled

Off

Off

Off

Off

SERIAL PORT INTERRUPT SELECTION

Port 1

Port 2

SW2/1

SW2/2

SW2/3

SW2/4

IRQ3

IRQ4

Off

On

On

Off

IRQ4

IRQ3

On

Off

Off

On

PARALLEL PORT CONFIGURATION

Port

Address

SW1/5

SW1/6

Enabled

278h (LPT1)

On

Off

Enabled

378h (LPT2)

Off

On

Disabled

N/A

Off

Off

PARALLEL PORT INTERRUPT SELECTION

IRQ

SW2/5

SW2/6

IRQ5

Off

On

IRQ7

On

Off

GAME PORT CONFIGURATION

Port

SW1/7

Enabled

On

Disabled

Off

CLOCK CONFIGURATION

Clock

IRQ

SW1/8

SW2/7

SW2/8

Enabled

IRQ2

On

On

Off

Enabled

IRQ5

On

Off

On

Disabled

N/A

Off

N/A

N/A

SECOND SERIAL PORT ACTIVATION

To activate the second serial port, the following chips must be installed:

Chip

Socket

SN75188 or MC1488P

U5

SN75189 or MC1489P

U6

IC 8250

U11








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