HwMuseum | Index

UNIDENTIFIED

HMC86304 VER 1.01

Category

Video

Video Types Supported

XVGA

Video Processor

HMC86304

Highest Resolution Supported

1024 x 768

Data Bus Type

16-bit ISA

Memory Type

DRAM

Maximum Onboard Memory

512KB

CONNECTIONS

Purpose

Location

15-pin analog video port

CN1

INTERRUPT IRQ9 SELECT

Setting

JP24

»

Disabled

Open

 

Enabled

Closed

ZERO WAIT STATE

Setting

JP25

»

Disabled

Open

 

Enabled

Closed

CLOCK SPEED SELECT

Setting

JP21

JP22

40Mhz clock

Closed

Open

44.4Mhz clock

Open

Closed

MEMORY SIZE SELECT

Size

JP23/A

JP23/B

JP23/C

JP23/D

JP23/E

JP23/F

JP23/G

JP23/H

JP23/I

256KB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

512KB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated are in the closed position.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

256KB

(2) 64K x 8

(2) 64K x 8

512KB

(2) 256K x 4

(2) 256K x 4