EVEREX SYSTEMS, INC.

EVERGRAPHICS PLUS EV-231D

Category

Video

Video Types Supported

Monochrome

Video Processor

6845

Highest Resolution Supported

720 x 348

Data Bus Type

8-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

64KB (Exact location of memory is unidentified)

CONNECTIONS

Purpose

Location

Purpose

Location

Monochrome video port

P2

Parallel port

P3

COLUMN (132) DISPLAY CONFIGURATION

Setting

W1

»

Enabled

Pins 2 & 3 closed

 

Disabled

Pins 1 & 2 closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

IRQ

»

7

Pins 2 & 3 closed

 

5

Pins 1 & 2 closed

PARALLEL PORT CONFIGURATION

LPT

Address

W2

W3

»

1

3BCh - 3BEh

Pins 1 & 2 closed

Pins 2 & 3 closed

 

2

378h - 37Fh

Pins 1 & 2 closed

Pins 1 & 2 closed

 

3

278h - 27Fh

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disabled

N/A

Pins 2 & 3 closed

Pins 2 & 3 closed

FACTORY CONFIGURED - DO NOT ALTER

Jumper

Position

J1

Closed