WT8043
Figure 2: H/V Frequency Division and Video Mode
Fv (Hz)
78
1024X768
(35k, 87)
640X350
(37k, 84)
(+,-)
640X400
(37k, 84)
(-,+)
832X624
(50k, 70)
1024X768
(60k, 75)
640X480
(37k, 75)
(-,-)
800X600
(47k, 75)
73.5
640X350
(32k, 70)
(+,-)
800X600
(48k, 72)
1024X768
(56.5k, 72)
640X480
(35k, 67)
MAC II
640X480
(37k, 73)
(-,-)
640X400
(32k, 70)
(-,+)
640X480
(38.6k, 72)
(-,+)
64
30
640X480
(32k, 60)
(-,-)
640X400
(24k, 56)
800X600
(35k, 56)
800X600
(38k, 60)
1280X1024
(64k, 60)
1024X768
(48k, 60)
Fh(KHz)
36.2
52
62
28
33
11
45
Table 2: IBM VGA/ VESA VGA Decoding Table
PIN
640 x 480
640 x 400
640 x 350
Mode
640 x 480
640 x 400
640 x 350
640 x 480
640 x 400
640 x 350
0
1
1
0
1
1
1
0
1
1
0
1
1
1
0
1
1
0
IBM VGA
VESA VGA
Weltrend Semiconductor, Inc.
2F., No. 24, Industry E. 9th Rd.
Science-Based Industrial Park
Hsin-Chu, Taiwan, R.O.C.
Tel: 886-35-780241
Fax: 886-35-770419
15
ETC [ ETC ]
