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CIRRUS LOGIC GD542X (VER. 4.2)

CARDEXPERT TECHNOLOGY, INC.

CIRRUS LOGIC GD542X (VER. 4.2)

Category

Video

Video Types Supported

XVGA

Video Processor

Cirrus Logic GD542X

Highest Resolution Supported

1280 x 1024

Data Bus Type

32-bit Vesa Local Bus

Memory Type

DRAM

Maximum Onboard Memory

2MB

CONNECTIONS

Purpose

Location

Purpose

Location

15-pin analog video port

CN1

VGA feature connector

CN2

INTERRUPT CONFIGURATION

IRQ 2/9

JP1

Disabled

Pins 2 & 3 closed

 

Enabled

Pins 1 & 2 closed

MAIN MEMORY MAP DECODER SELECTION

Memory

JP2

64MB

Pins 1 & 2 closed

 

128MB

Pins 2 &3 closed

RAMDAC SHADOW CONFIGURATION

Setting

JP3

Disabled

Pins 2 & 3 closed

 

Enabled

Pins 1 & 2 closed

FACTORY CONFIGURED - DO NOT ALTER

Jumper

Position

S0

N/A

S1

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(8) 256K x 4

NONE

2MB

(8) 256K x 4

(8) 256K x 4

Note: DRAM chip size can also be 256K x 8 depending on the Cirrus Logic GD542X version you have.

Relative location of Bank 0 & Bank 1 is unidentified by the manufacturer.