AK8854VQ Datasheet, PDF (87/95 Pages) Asahi Kasei Microsystems – Multi-Format Digital Video Decoder

[AK8854VQ]
Status 2 Register (R) [Sub Address 0x23] for shows AK8854 internal status
Sub Address 0x23
bit 7
bit 6
Reserved Reserved
bit 5
AGCSTS
bit 4
bit 3
bit 2
Reserved WSSDET VBIDDET
bit 1
EXTDET
bit 0
CCDET
Status 2 Register Definition
Bit
Register
Name
bit 0 CCDET
Closed Caption Detect
bit 1 EXTDET
Extended Data Detect
bit 2 VBIDDET VBID Data Detect
bit 3 WSSDET WSS Data Detect
bit 4 REALFLD Real Field
bit 5 AGCSTS
bit 6
~
Reserved
bit 7
AGC Status bit
Reserved
R/W Definition
Indicator for presence of decoded data in
Closed Caption 1 2 Register
R
[0]: No closed caption data present
[1]: Closed caption Data present
Indicator for presence of decoded data in
Extended Data 1,2 Register
R
[0]: No extended data present
[1]: Extended data present
Indicator for presence of decoded data in
VBID 1,2 Register
R
[0]: No VBID data present
[1]: VBID data present
Indicator for presence of decoded data in
WSS 1,2 Register
R
[0]: No WSS data present
[1]: WSS data present
Input signal field status (even/odd) indicator
R
[0]: EVEN field
[1]: ODD field
[0]: Sync AGC active
R
[1]: Peak AGC active *
R
Reserved
It is not applicable that sync signal is H/VSYNC or CSYNC at RGB input.
MS0973-E-01
87
2008/07