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IT-VGA2

INFORMTECH INTERNATIONAL, INC.

IT-VGA2

Category

Video

Video Types Supported

XVGA

Video Processor

Tseng Laboratories

Highest Resolution Supported

1024 x 768

Data Bus Type

16-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

1MB

CONNECTIONS

Purpose

Location

Purpose

Location

15-pin analog video port

CN1

VESA feature connector

CN2

BIOS ADDRESS

Address Range

J1

C0000h - C7FFFh

Pins 2 & 3 closed

 

C0000h - DFFFFh

Pins 1 & 2 closed

EARLY #MEMCS

Setting

J2

Enabled

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

PIXEL CLOCK DELAY

Setting

J3

Normal

Pins 1 & 2 closed

 

20ns delay

Pins 2 & 3 closed

INTERRUPT REQUEST

IRQ9

J4

Disabled

Open

 

Enabled

Closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

256KB

(2) 256K x 4

NONE

NONE

 

512KB

(2) 256K x 4

(2) 256K x 4

NONE

 

1MB

(2) 256K x 4

(2) 256K x 4

(4) 256K x 4