AK8856VN Datasheet, PDF (37/98 Pages) Asahi Kasei Microsystems – NTSC/PAL Video Decoder

ASAHI KASEI
[AK8856VN]
Macrovision Decoding
When a Macrovision Copy Protect signal is present, the AK8856 decodes the additional Macrovision information
and stores the result in the Macrovision Status Register (R/W) [Sub Address 0x11].
Configuration of the Macrovision Status Register:
Sub Address 0x11
bit 7
bit 6
Reserved
PSPDET
bit 5
AGCPDET
bit 4
BPPDET
bit 3
SYNCRED
bit 2
CSTYPE
bit 1
CSDET
bit 0
AGCDET
[AGCDET] bit
When Macrovision AGC process is detected, this bit goes to “1”.
[AGCDET]-bit
Status of Macrovision Detection
0
AGC Process not detected
1
AGC Process detected
Condition
[CSDET] bit
When Macrovision Color Stripe Process is detected, this bit goes to “1”.
[CSDET]-bit
Status of Macrovision Detection
0
Color Stripe Process not detected
1
Color Stripe Process detected
Condition
[CSTYPE] bit
When the CSDET-bit is “1”, Color Stripe Process type is indicated.
[CSTYPE]-bit
Status of Macrovision Detection
0
Color Stripe Type 2 is set
1
Color Stripe Type 3 is set
Condition
[SYNCRED] bit
When the SYNCRED-bit is “1”, Sync Reduction has been detected.
[SYNCRED]-bit
Status of Macrovision Detection
0
-
1
Sync Reduction detected
Condition
[BPPDET] bit
When the BPPDET-bit is “1”, an “End of Field Back Porch Pulse“ has been detected.
[BPPDET]-bit
Status of Macrovision Detection
Condition
0
-
1
End of Field Back Porch Pulse detected
[AGCPDET] bit
When AGCPDET-bit is “1”, an AGC Pulse has been detected.
[AGCPDET]-bit
Status of Macrovision Detection
0
-
1
AGC Pulse detected
[PSPDET] bit
When PSPDET-bit is “1”, a Pseudo Sync Pulse has been detected.
[PSPDET]-bit
Status of Macrovision Detection
0
-
1
Pseudo Sync Pulse detected.
Condition
Condition
MS0522-E-00
37
2006/Dec