Analog Devices ADV7850 Hardware Manual page 75

sdp_frm_nstd, Addr 90 (SDP), Address 0x56[4] (Read Only)
This readback indicates if the frame length in clock cycles is within the threshold set by sdp_frm_nstd_thr.
Function
sdp_frm_nstd
1
0 
sdp_lc_nstd, Addr 90 (SDP), Address 0x56[3] (Read Only)
This readback indicates if the field length varies by more than one line from field to field.
Function
sdp_lc_nstd
1
0 
sdp_allow_med_pll, Addr 90 (SDP), Address 0x56[2] (Read Only)
This readback indicates if the input could be from a VCR source. It is valid only if sdp_allow_slow_pll is set to 0. It is ignored if
sdp_allow_slow_pll is set to 1.
Function
sdp_allow_med_pll
1
0 
sdp_allow_slow_pll, Addr 90 (SDP), Address 0x56[1] (Read Only)
This readback indicates if the input could be from a VCR source. It is to be used in conjunction with sdp_allow_med_pll.
Function
sdp_allow_slow_pll
1
0 
sdp_free_run, Addr 90 (SDP), Address 0x56[0] (Read Only)
This readback indicates free run status. If set to 1, the part is free running due to no video detected on the input or forced free run
mode.
Function
sdp_free_run
1
0 
sdp_ckill_act, Addr 90 (SDP), Address 0x57[7] (Read Only)
This readback displays the color kill status.
Function
sdp_ckill_act
1
0 
Rev. A May 2012
Description
Frame length in clock cycles not within +- sdp_frm_nstd_thr of nominal value
Frame length in clock cycles within +- sdp_frm_nstd_thr of nominal value
Description
Field length in terms of number of lines varies by more than one line from field to field
Field length in terms of number of lines does not vary by more than one line from field to field
Description
Input may be a VCR; medium HSync PLL speed used
Input is a VCR; fast HSync PLL speed used
Description
Input not a VCR; slow HSync PLL speed used
Input may be a VCR; refer to sdp_allow_med_pll
Description
Part free running
Part not free running
Description
Color kill is active (and enabled)
Color kill is not active
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ADV7850