Ardent Tool of Capitalism

The go-to place for all PS/2 and Micro Channel addicts. MAD Edition!
Reference
Material		 Software
& Drivers		 IBM
Systems		 Non-IBM
Systems		 MCA
Adapters		 Parts &
Technology		 Setup &
Config

XGA Memory

MSM514262 Datasheet

The XGA specification supports 4 MB of video memory. (Doesn't mean the actual implementation supports it though...)

MSM514262 Pinout

Pin Name         Function
A0 - A8          Address Input
RAS              Row Address Strobe
CAS              Column Address Strobe
DT/OE            Transfer/Output Enable
WB/WE            Mask/Write Enable
DSF              Special Function Input
W1/IO1 - W4/IO4  RAM Inputs/Outputs
SC               Serial Clock
SE               SAM Port Enable
SIO1 - SIO4      SAM Inputs/Ourputs
QSF              Special Function Output
VCC              Power Supply (5 V)
Vss              Ground (0 V)
NC               No Connection

MSM514262 Block Diagram

Content created and/or collected by:
Louis Ohland, Peter Wendt, David Beem, William Walsh, Tatsuo Sunagawa, Jim Shorney, Tim Clarke, Kevin Bowling, Tomáš Slavotínek, and many others.

Ardent Tool of Capitalism - MAD Edition! is maintained by Tomáš Slavotínek.
Last update: 28 May 2023 - Changelog | Legal Info & Contact