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VSDD.TXT

Last change on this file was 3ae31e9, checked in by Thomas Lopatic <thomas@…>, 7 years ago
Imported original source code.
Property mode set to `100755`
File size: 1.2 KB

Line
1	82716 VSDD Timing Calculations
2	------------------------------
3
4	with HRS = 1 and PSA = 0
5
6	Clock values
7	------------
8
9	VCK = 12800000 Hz Master clock
10	PIXCLK = 12800000 Hz Pixel clock
11	VPH = 6400000 Hz Internal clock
12	GCLK = 800000 Hz General clock (1250 nanoseconds)
13
14	Horizontal values Vertical values
15	----------------- ---------------
16
17	HC0 = 4 GCLKs VC0 = 9 lines sync
18	HC1 = 6 GCLKs VC1 = 11 lines start
19	HC2 = 38 GCLKs VC2 = 361 lines stop
20	HC3 = 41 GCLKs VC3 = 363 lines sweep
21
22	AHP = 32 GCLKs AVL = 350 lines active
23	IHP = 9 GCLKs IVL = 13 lines inactive
24
25	HSYNC = 5000 nanoseconds VSYNC = 461250 nanoseconds
26	HSWEEP = 51250 nanoseconds VSWEEP = 18603750 nanoseconds
27	AHZ = 40000 nanoseconds AVZ = 17937500 nanoseconds
28
29	Miscellaneous values
30	--------------------
31
32	GPIX = 16 pixels / GCLK HPIX = 512 pixels displayed
33	HRATE = 19512 Hz VRATE = 53 Hz
34

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