Synctip Noise Measurement, Noisy And Very Noisy Signal Detection - Analog Devices ADV7850 Hardware Manual

sdp_mvcs_type3, Addr 90 (SDP), Address 0x50[1] (Read Only)
This readback displays the detection of a Macrovision type 3 color stripe process.
Function
sdp_mvcs_type3
1
0 
sdp_mvcs_detect, Addr 90 (SDP), Address 0x50[0] (Read Only)
This readback displays the detection of the color stripe process.
Function
sdp_mvcs_detect
1
0 
status_macrovision_detection_2 Register
sdp_bp_total_pulse_beg[3:0], Addr 90 (SDP), Address 0x51[7:4] (Read Only)
This readback displays the total Macrovision back porch pulses detected at the beginning of the field.
sdp_bp_total_pulses_end[3:0], Addr 90 (SDP), Address 0x51[3:0] (Read Only)
This readback displays the total Macrovision back porch pulses detected at the end of the field.

Synctip Noise Measurement, Noisy and Very Noisy Signal Detection

6.4.5
sdp_synctip_noise[11:0] is a readback value of the average of the noise in the HSync tip.
complete I C registers, allowing the user to read eight MSBs or eight LSBs of synctip noise in one I
2
1 bit of sdp_synctip _noise[11:0] = 1 ADC code
1 bit of sdp_synctip _noise[11:0] = 398.883 uV
sdp_synctip_noise[11:0], Addr 90 (SDP), Address 0x53[7:4]; Address 0x4F[7:0] (Read Only)
This readback indicates the noise level on the synctip of the video signal.
Function
sdp_synctip_noise[11:0
]
0x53[7:4]
0x4F[7:0]
Note that register 0x53[3:0] contains sdp_synctip_noise[7:4]. The polling of a single register in 0x53[7:0] reads back the MSBs of
sdp_synctip_noise[11:4]. The polling of a single register in 0x4F[7:0] reads back the LSBs of sdp_synctip_noise[7:0]. The user has to read
back both registers (0x53 and 0x4F) to obtain the full noise measurement from sdp_synctip_noise[11:0].
The sdp_noisy_ip and sdp_very_noisy_ip
in register 0x54. By doing a single readback of register 0x54, the quality of the video signal can be determined quickly.
and sdp_very_noisy_thr[7:0]
The following controls are used in conjunction with the bits used for 3D comb activation (refer to Section 6.7.1):
Rev. A May 2012
Description
Macrovision type 3 color stripe process detected, only valid if sdp_mvcs_detect = 1
Macrovision type 3 color stripe process not detected
Description
Macrovision color stripe process detected
Macrovision color stripe process not detected
Description
sdp_synctip_noise[11:8]
sdp_synctip_noise[7:0]
bits can be used to check the quality of the video
are used to set the threshold for the input to detect a signal as noisy or very noisy.
sdp_synctip_noise[11:0]
signal.
78
ADV7850
is spread over two
C read transfer.
2
These bits are located in the SDP Map
sdp_noisy_thr[7:0]