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MP-009

TTC COMPUTER PRODUCTS

MP-009

Card Type

Serial card

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 SELECT

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

 

2E0h - 2E7h

On

On

Off

Off

Off

On

Off

On

 

260h - 267h

On

On

Off

Off

On

On

Off

On

 

Disabled

Off

Off

Off

Off

Off

Off

Off

Off

SECONDARY PORT I/O ADDRESS SELECT

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

 

2E0h - 2E7h

On

On

Off

Off

Off

On

Off

On

 

260h - 267h

On

On

Off

Off

On

On

Off

On

 

Disabled

Off

Off

Off

Off

Off

Off

Off

Off

SERIAL PORT INTERRUPT SELECT

IRQ

JP3 (Port 1)

JP4 (Port 2)

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.

PRIMARY PORT SINGLE/MULTIPLE SOURCE INTERRUPT SELECT

Setting

JP1

»

Single

Pins 2 & 3 closed

 

Multiple

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

Pins 2 & 3 closed

 

Multiple

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.