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EVERGRAPHICS PLUS EV-231C

EVEREX SYSTEMS, INC.

EVERGRAPHICS PLUS EV-231C

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

PA5

Parallel port

PC5

COLUMN (132) DISPLAY CONFIGURATION

Setting

JD1A

Enabled

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

PARALLEL PORT INTERRUPT SELECTION

IRQ

JE2

7

Pins 2 & 3 closed

 

5

Pins 1 & 2 closed

PARALLEL PORT CONFIGURATION

LPT

Address

JA1

1

3BCh - 3BEh

Pins 1 & 2 closed

 

2

378h - 37Fh

Pins 3 & 4 closed

 

3

278h - 27Fh

Pins 1 & 2, 3 & 4 closed

 

Disabled

N/A

Open

FACTORY CONFIGURED - DO NOT ALTER

Jumper

Position

JD1B

Closed