For Information Equipment
MN89303A
SVGA Display Controller
Overview
The MN89303A is an LCD/CRT display controller with
IBM鈩?VGA-compatible registers. It features all the neces-
sary interfaces for a compact display system: ISA bus inter-
face, local bus interface, DRAM interface, and LCD panel
interface. The built-in graphics acceleration functions include
support for hardware cursor.
Note: IBM鈩?and VGA are registered trademarks of International
Business Machines Corporation.
Features
Monochrome STN LCD panel support
Maximum display size: 800
脳
600
Support for single and dual panels
16-monochrome gradation
Color STN LCD panel support
Maximum display size: 800
脳
600
Support for single and dual panels
16-gradation for each color (RGB)
Color TFT LCD panel support
Maximum display size: 800
脳
600
4-bit output for each color (RGB)
Maximum number of colors in concurrent display
640
脳
480: 256/4096 palette (TFT, STN)
800
脳
600: 256/4096 palette (TFT, STN)
Built-in graphics acceleration functions
鈥?Hardware cursor (16
脳
16 or 32
脳
32)
Built-in automatic display centering
Built-in gradation control table (rewritable) for
optimizing gradation to match panel
DRAM interface with 16-bit bus
鈥?Choice of DRAM access timing to match
system performance (EDO/normal)
鈥?Support for 2CAS/2WE mode
鈥?Refresh control
Host interfaces
鈥?ISA bus (16-bit)
鈥?i386/i486 local bus (16-bit)
Note: i386 and i486 are trademarks of Intel Corporation.
Applications
Point-of-sale terminals, Factory automation terminals,
word processors, and other terminals
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