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PC/XI, PC/XI+

DIGI INTERNATIONAL, INC.

PC/XI, PC/XI+

Card Type

Serial controller

Chipset/Controller

80C186

I/O Options

Serial ports (8 or 16)

Maximum DRAM

512KB dual ported RAM

CONNECTIONS

Purpose

Location

DB-78 connector

CN1

Note:CN1 attaches to a serial concentrator.

DRAM CONFIGURATION

Size

J2

J3

64KB

Pins 2 & 3 closed

Pins 2 & 3 closed

 

128KB

Pins 2 & 3 closed

Pins 1 & 2 closed

 

256KB

Pins 1 & 2 closed

Pins 2 & 3 closed

 

512KB

Pins 1 & 2 closed

Pins 1 & 2 closed

FACTORY CONFIGURED SETTINGS

Jumper

Setting

J1

Pins 2 & 3 closed

BASE MEMORY ADDRESS SELECT (<1MB)

Address

DS1/1

DS1/2

DS1/3

DS1/4

DS1/5

DS1/6

DS1/7

DS1/8

80000h

On

On

On

Off

On

On

On

On

90000h

Off

On

On

Off

On

On

On

On

B0000h

Off

Off

On

Off

On

On

On

On

C0000h

On

On

Off

Off

On

On

On

On

D0000h

Off

On

Off

Off

On

On

On

On

E0000h

On

Off

Off

Off

On

On

On

On

BASE MEMORY ADDRESS SELECT (>1MB)

Address

DS1/1

DS1/2

DS1/3

DS1/4

DS1/5

DS1/6

DS1/7

DS1/8

D00000h

On

On

On

On

Off

On

Off

Off

D80000h

On

On

On

Off

Off

On

Off

Off

E00000h

On

On

On

On

On

Off

Off

Off

E80000h

On

On

On

Off

On

Off

Off

Off

F00000h

On

On

On

On

Off

Off

Off

Off

F80000h

On

On

On

Off

Off

Off

Off

Off

FA0000h

On

Off

On

Off

Off

Off

Off

Off

I/O ADDRESS SELECT

Address

DS1/9

DS1/10

DS1/11

100h

On

Off

Off

110h

Off

On

Off

120h

On

On

Off

200h

Off

Off

On

220h

On

Off

On

300h

Off

On

On

320h

On

On

On

INTERRUPT SELECT

IRQ

DS2/1

DS2/2

DS2/3

DS2/4

DS2/5

DS2/6

DS2/7

DS2/8

IRQ3

On

Off

Off

Off

Off

Off

Off

Off

IRQ4

Off

On

Off

Off

Off

Off

Off

Off

IRQ5

Off

Off

On

Off

Off

Off

Off

Off

IRQ7

Off

Off

Off

On

Off

Off

Off

Off

IRQ10

Off

Off

Off

Off

On

Off

Off

Off

IRQ11

Off

Off

Off

Off

Off

On

Off

Off

IRQ12

Off

Off

Off

Off

Off

Off

On

Off

IRQ15

Off

Off

Off

Off

Off

Off

Off

On

Disabled

Off

Off

Off

Off

Off

Off

Off

Off