20
First issue 06 /02
PC mode
6
7
8
9
10
Signal name
MAC@13Ó
VESA
VESA
VESA
XGA-2
480@72Hz
480@75Hz
480@85Hz
480@75HZ
Definition
640*480
640*480
640*480
640*480
640*480
Dot clock frequency (MHz)
30.24
31.5
31.5
36.0
31.5
H frequency (kHz)
35
37.861
37.5
43.269
39.375
V frequency (Hz)
66.667
72.809
75
85.008
75
H total (uS)
28.571
26.413
26.667
23.111
25.4
(dots)
864
832
840
832
800
H display period (uS)
21.164
20.317
20.317
17.778
20.32
(dots)
640
640
640
640
640
H front porch (uS)
2.116
0.762
0.508
1.556
0.508
(dots)
64
24
16
56
16
H sync pulse width (uS)
2.116
1.27
2.032
1.556
3.048
(dots)
64
40
64
56
96
H back porch (uS)
3.175
4.064
3.81
2.222
1.524
(dots)
96
128
120
80
48
V total (mS)
15
13.735
13.333
11.764
13.333
(line)
525
520
500
509
525
V display period (mS)
13.714
12.678
12.8
11.093
12.19
(line)
480
480
480
480
480
V front porch (mS)
0.086
0.237
0.027
0.023
0.279
(line)
3
9
1
1
11
V sync pulse width (mS)
0.086
0.079
0.08
0.069
0.051
(line)
3
3
3
3
2
V back porch (mS)
1.114
0.739
0.427
0.578
0.813
(line)
39
28
16
25
32
H sync polarity
Sync on G
Neg
Neg
Neg
Neg
V sync polarity
Sync on G
Neg
Neg
Neg
Neg
Scan type
Non
Non
Non
Non
Non
Interlaced
Interlaced
Interlaced
Interlaced
Interlaced
VGROM NO.
6
7
8
9
10
Содержание 50WS94E
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