cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 242

• Manufacturer Part Number: cx25870
• Description: Video Encoder With Adaptive Flicker Filtering And Hdtv Output
• Manufacturer: Conexant Systems, Inc.

Appendix C Autoconfiguration Mode Register Values and Details
Table C-2. CX25870/871 Register Values for Autoconfiguration Modes 5–10 (1 of 2)
C-4
Auto-Config Register (index
0xB8) Hexadecimal Value:
Purpose of Mode:
Type of Digital Input:
Active Resolution:
Overscan Ratio:
Horizontal Overscan
Ratio/Percentage (HOC):
Vertical Overscan
Ratio/Percentage (VOC):
Overscan Percentages Delta
(HOC - VOC):
H_CLKI = HTOTAL
VLINES_I = VTOTAL
H_BLANKI = Horizontal
Blanking Region
V_BLANKI = Vertical
Blanking Region
Type of Video Output:
Frequency of CLK (Hz)
Type of Clock:
0x38
0x76
0x78
0x7A
0x7C
0x7E
0x80
0x82
0x84
0x86
0x88
0x8A
Autoconfiguration Mode #
Register Address
PAL-BDGHI
29500008
05
Desktop
YCrCb
640x480
Standard
16.56
16.67
–0.11
944
625
266
90
Pixel or
Character
00
60
80
8A
A6
68
C1
2E
F2
27
00
B0
Register
Value
5
06
Desktop
YCrCb
800x600
Alternate
21.62
11.52
10.10
880
735
66
86
NTSC
38769241
Pixel or
Character
00
A0
20
B6
CE
B4
55
20
D8
39
00
70
Register
Value
6
Conexant
07
Desktop
YCrCb
800x600
Lower
14.53
13.19
1.34
960
750
140
95
PAL-BDGHI
36000000
Pixel or
Character
00
00
20
AA
CA
9A
0D
29
FC
39
00
C0
Flicker-Free Video Encoder with Ultrascale Technology
Register
Value
7
10
Boot-Up
Screen
RGB
640x400
Standard
17.47
17.70
–0.23
936
525
259
76
NTSC
29454552
Pixel or
Character
00
50
80
8A
9C
6A
A9
27
CA
27
00
A8
Register
Value
8
11
Boot-Up
Screen
RGB
640x400
Standard
15.12
13.19
1.93
1160
500
363
64
PAL-BDGHI
28999992
Pixel or
Character
00
40
80
88
A2
64
AF
29
FC
27
00
88
Register
Value
9
CX25870/871
12
Desktop
RGB
1024x768
Standard
15.11
14.81
0.30
1176
975
133
130
NTSC
68727276
Pixel or
Character
20
60
00
D8
F2
EE
71
24
D0
4B
00
98
Register
Value
100381B
10