MN89302 controller equivalent, svga display controller.
all the necessary interfaces for a compact display system: ISA bus interface, local bus interface, DRAM interface, and LCD panel interface. The built-in graphics accelera.
Point-of-sale terminals, Factory automation terminals, word processors, and other terminals
MN89302
Pin Assignment
ISA .
Pin No. 27 Symbol AEN I/O I Level TTL Address Enable
For Information Equipment
Function Description "H" level input from this pin indicates that a DMA transfer is in progress, so the chip does not respond to I/O access.
28 24 25 22
SBHE IOWR IOR.
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