VT1621M VIA, VT1621M Datasheet - Page 34

• Manufacturer Part Number: VT1621M
• Description: TV Encoder
• Manufacturer: VIA

Revision 1.0 June 17, 2002
* interlaced input mode
Mode
24*
25*
26*
27*
We Connect
We Connect
We Connect
We Connect
10
11
12
13
14
15
16
17
18
19
20
21
22
23
0
1
2
3
4
5
6
7
8
9
Rx00
[7-5]
000
000
000
000
001
001
001
001
010
010
010
010
010
011
011
011
011
011
011
100
100
100
100
100
101
101
110
110
Table 6. Display Modes for NTSC (M, J) & PAL (B, D, G, H, I, N, Nc)
Rx04
[1-0]
00
00
11
11
00
00
11
11
00
00
11
11
11
00
11
00
11
11
11
00
00
11
11
11
00
11
00
11
Rx02
[5-3]
010
000
010
000
010
000
010
000
010
000
010
000
100
010
000
011
000
100
011
000
011
011
001
101
000
000
000
000
Input Format
512 x 384
512 x 384
512 x 384
512 x 384
720 x 400
720 x 400
720 x 400
720 x 400
640 x 400
640 x 400
640 x 400
640 x 400
640 x 400
640 x 480
640 x 480
640 x 480
640 x 480
640 x 480
640 x 480
800 x 600
800 x 600
800 x 600
800 x 600
800 x 600
720 x 576
720 x 480
800 x 500
640 x 400
H_Total * V_Total Pixel Clock
- 29-
1125 x 500
1116 x 625
1000 x 500
1008 x 625
1040 x 630
1040 x 700
1064 x 750
1135 x 625
840 x 500
840 x 625
800 x 420
784 x 525
945 x 420
936 x 525
840 x 420
840 x 525
840 x 600
960 x 500
840 x 625
840 x 750
784 x 525
784 x 600
800 x 630
944 x 625
960 x 750
864 x 625
858 x 525
910 x 525
VT1621 / VT1621M TV Encoder
21.000000
26.250000
20.139860
24.671329
28.125000
34.875000
23.790210
29.454545
25.000000
31.500000
21.146853
26.433566
30.209790
24.000000
26.250000
31.500000
24.671329
28.195804
30.209790
29.500000
36.000000
39.272727
43.636364
47.832169
13.500000
13.500000
17.734375
14.318182
Standard Scaling
Output
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
Functional Descriptions
7/10
5/4
1/1
5/4
1/1
5/4
1/1
5/4
1/1
5/4
1/1
5/4
1/1
7/8
5/4
1/1
5/6
1/1
7/8
5/6
1/1
5/6
5/6
3/4
1/1
1/1
1/1
1/1