cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 246

• 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-4. CX25870/871 Register Values for Autoconfiguration Modes 16–21 (1 of 2)
C-8
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:
Autoconfiguration Mode #
Register Address
0x38
0x76
0x78
0x7A
0x7C
0x7E
0x80
0x82
0x84
0x86
0x88
0x8A
0x8C
Reserved
16
Desktop
RGB
640x480
Lower
13.63
13.19
0.44
950
271
76
PAL-BDGHI
Pixel Only
21
600
28500011
Register
Value
17
A0
9D
B6
00
20
80
86
60
29
FC
27
00
0F
Conexant
22
Desktop
RGB
800x600
Lower
13.79
13.58
0.21
1176
750
329
94
NTSC
52867138
Pixel or
Character
Flicker-Free Video Encoder with Ultrascale Technology
Register
Value
18
20
C0
20
A6
BA
98
D9
22
D4
38
00
98
49
23
Desktop
RGB
800x600
Standard
16.42
15.97
0.45
950
775
131
109
PAL-BDGHI
36812508
Pixel Only
Register
Value
2D
19
00
34
20
AE
CE
A0
2B
39
00
B6
83
F4
Reserved
20
CX25870/871
25
Desktop
YCrCb
640x480
Lower
13.63
13.19
0.44
950
600
271
76
PAL-BDGHI
28500011
Pixel Only
Register
Value
100381B
21
00
20
80
86
A0
60
9D
29
FC
27
00
B6
0F