AK8851 Datasheet, PDF (54/80 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

ASAHI KASEI
Input Video Standard Register (R/W) [Sub Address 0x01]
Register to set various input signal characteristics
Sub Address 0x01
bit 7
bit 6
bit 5
AUTODET
SETUP
B/W
0
0
0
bit 4
bit 3
VLF
VCEN1
Default Value
0
0
bit 2
VCEN0
0
[AK8851]
Default Value : 0x00
bit 1
bit 0
VSCF1
VSCF0
0
0
Input Video Standard Register Definition
BIT Register Name
bit 0
VSCF0
~
~
Subcarrier Frequency
bit 1
VSCF1
bit 2
VCEN0
~
~
Video Color Encode
bit 3
VCEN1
bit 4
VLF
Video Line Frequency
bit 5
B/W
Black and White bit
bit 6
SETUP
Setup
bit 7 AUTODET Video Standard Auto Detect
R/W Definition
Set Sub-Carrier frequency of the input video signal
VSCF1 - VSCF0 [MHz]
00 : 3.57954545
R/W _{01 : 3.57561188}
10 : 3.5820558
11 : 4.43361875
Set the color encode type for the input video signal
00 : NTSC
R/W 01 : PAL
10 : SECAM
11 : Reserved
Set the number of Line of the input video signal
R/W 0 : 525 Lines System
1 : 625 Lines System
Set the Black and White mode
R/W 0 : Color mode
1 : Black and White mode
Setup (7.5%) process.
R/W 0 : without SETUP signal
1 : with SETUP signal
Autodetection of the input video signal
R/W 0 : OFF (AK8851 does not auto detect.)
1 : ON (AK8851 auto detects)
MS0244-E-03
54
Confidential
2005 / 07