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MP-010

TTC COMPUTER PRODUCTS

MP-010

Card Type

I/O controller

Chipset/Controller

National Semiconductor

I/O Options

Serial ports (2)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

J2

Serial port 2

J3

PRIMARY PORT I/O ADDRESS CONFIGURATION

Address

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

»

3F8h - 3FFh

Off

Off

Off

Off

Off

Off

Off

On

 

2F8h - 2FFh

Off

Off

Off

Off

Off

On

Off

On

 

3E8h - 3EFh

Off

On

Off

Off

Off

Off

Off

On

 

2E8h - 2EFh

Off

On

Off

Off

Off

On

Off

On

 

2F0h - 2FFh

On

Off

Off

Off

Off

On

Off

On

 

3E0h - 3E7h

On

On

Off

Off

Off

Off

Off

On

 

2EOh - 2E7h

On

On

Off

Off

Off

On

Off

On

 

26Oh - 267h

On

On

Off

Off

On

On

Off

On

 

Disabled

Off

Off

Off

Off

Off

Off

Off

Off

SECONDARY PORT I/O ADDRESS CONFIGURATION

Address

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

3F8h - 3FFh

Off

Off

Off

Off

Off

Off

Off

On

2F8h - 2FFh

Off

Off

Off

Off

Off

On

Off

On

3E8h - 3EFh

Off

On

Off

Off

Off

Off

Off

On

2E8h - 2EFh

Off

On

Off

Off

Off

On

Off

On

2F0h - 2FFh

On

Off

Off

Off

Off

On

Off

On

3E0h - 3E7h

On

On

Off

Off

Off

Off

Off

On

2EOh - 2E7h

On

On

Off

Off

Off

On

Off

On

26Oh - 267h

On

On

Off

Off

On

On

Off

On

Disabled

Off

Off

Off

Off

Off

Off

Off

Off

SERIAL PORT INTERRUPT SELECT

IRQ

Port 1 (JP3)

Port 2 (JP4)

IRQ2

Pins 1 & 2 closed

Pins 1 & 2 closed

IRQ3

Pins 3 & 4 closed

Pins 3 & 4 closed

IRQ4

Pins 5 & 6 closed

Pins 5 & 6 closed

IRQ5

Pins 7 & 8 closed

Pins 7 & 8 closed

IRQ10

Pins 9 & 10 closed

Pins 9 & 10 closed

IRQ11

Pins 11 & 12 closed

Pins 11 & 12 closed

IRQ12

Pins 13 & 14 closed

Pins 13 & 14 closed

IRQ15

Pins 15 & 16 closed

Pins 15 & 16 closed

Disabled

Open

Open

Note:The default interrupt setting for Port 1 is IRQ4, and for Port 2 it is IRQ3.

RS-422/RS-485 CONFIGURATION

Port

Setting

JP5

1

RTS controls output if RTS is Low

Pins 1 & 2 closed

1

Transmit output enabled

Pins 3 & 4 closed

1

DTR controls receive input if DTR is Low

Pins 5 & 6 closed

1

Receive input enabled

Pins 7 & 8 closed

2

RTS controls output if RTS is Low

Pins 9 & 10 closed

2

Transmit output enabled

Pins 11 & 12 closed

2

DTR controls receive input if DTR is Low

Pins 13 & 14 closed

2

Receive input enabled

Pins 15 & 16 closed

PRIMARY PORT SINGLE/MULTIPLE SOURCE INTERRUPT SELECT

Setting

JP1

»

Single source

Pins 2 & 3 closed

 

Multiple source

Pins 1 & 2 closed

Note:Multiple source mode allows two or more ports to use the same IRQ setting, while Single source mode requires separate IRQ’s for each port.

SECONDARY PORT SINGLE/MULTIPLE SOURCE INTERRUPT SELECT

Setting

JP2

»

Single source

Pins 2 & 3 closed

 

Multiple source

Pins 1 & 2 closed

Note:Multiple source mode allows two or more ports to use the same IRQ setting, while Single source mode requires separate IRQ’s for each port.

TERMINATING RESISTOR CONFIGURATION

Setting

JP6

JP7

Resistors enabled

Closed

Closed

Resistors disabled

Open

Open