Table of Contents
1.0	Introduction	. 1
	1.1 Typical System Configurations	1
	1.2 Major Features	2
	1.3 Block Diagram	4
2.0	Signal Description	
	2.1 Key to Signal Types	g
3.0	System Configurations	9
	3.1 Asynchronous 32 bit mode.	9
	3.2 Synchronous 32 bit mode	10
	3.3 646itmode	10
	3.4 Split Bank mode	11
	3.5 Using VRAM with VIDC20	11
	3.6 Display Options	13
4.0	Programming Model	15
	4.1 VIDC20 Registers	15
5.0-	Pixel Clock	29
6.0	Setting the FIFO preload value	31
7.0	The Palette	33
	7.1 Palette Updating	33
8.0	Cursor	35
	8.1 Cursor in HiRes Mode	35
	8.2 Cursor in Interlace Mode	35
	8.3 Cursor m LCD mode	36
9.0	Hi-Res Support	37
	9.1 VIDC20 Support for Hi-Res Mode	37
10.0	Liquid Crystal Displays	39
	10.1 LCD grey-scaling	39
	10.2 Dual Panel LCDs (Duplex Mode)	40
	10.3 Single Panel Colour LCDs	40
11.0	External Support	41
	11.1 The External Port	41
	11.2 Power Saving Considerations	41
	11.3 Vertical and Horizontal Synchronisation	42
	11.4 Genla<king	42
12.0	Analog Outputs	43
	12.1 DAC Control	43
	12.2 Video DAC Currents	43
	12.3 Monochrome Output	43
	12.4 ESD protection	qg
13.0	Sound	45
	13.1 The Sound Core	45
	13.2 VIDC10Sound	45