Analog Devices ADV7850 Hardware Manual page 266

Function
ch1_pol_man_en
0 
1
ch2_pol_man_en, Addr 44 (CP), Address 0x41[7]
This control is used to override the polarity detection by sync channel 2 SSPD.
Function
ch2_pol_man_en
0 
1
ch1_pol_vs, Addr 44 (CP), Address 0x85[6]
This control is used to override the polarity of VSync by sync channel 1 SSPD.
Function
ch1_pol_vs
0 
1
ch2_pol_vs, Addr 44 (CP), Address 0x41[6]
This control is used to override the polarity of VSync by sync channel 2 SSPD. ch2_pol_man_en must be set to 1 for this control to be
active.
Function
ch2_pol_vs
0 
1
ch1_pol_hscs, Addr 44 (CP), Address 0x85[5]
This control is used to override the polarity of HSync by sync channel 1 SSPD. ch1_pol_man_en must be set to 1 for this control to
become active.
Function
ch1_pol_hscs
0 
1
ch2_pol_hscs, Addr 44 (CP), Address 0x41[5]
This control is used to override the polarity of HSync by sync channel 2 SSPD. ch2_pol_man_en must be set to 1 for this control to be
active.
Function
ch2_pol_hscs
0 
1
Rev. A May 2012
Description
Use result from sync channel 1 SSPD polarity autodetection
Manual override, use ch1_pol_vs and ch1_pol_hs
Description
Use result from sync channel 2 SSPD autodetection
Use ch2_pol_vs and ch2_pol_hs
Description
VSync input to sync channel 1 carries negative polarity signal
VSync input to sync channel 1 carries positive polarity signal
Description
VSync input to sync channel 2 carries negative polarity signal
VSync input to sync channel 2 carries positive polarity signal
Description
HSync input to sync channel 1 carries negative polarity signal (HSync or CSync)
HSync input to sync channel 1 carries positive polarity signal (HSync or CSync)
Description
HSync input to sync channel 2 carries negative polarity signal (HSync or CSync)
HSync input to sync channel 2 carries positive polarity signal (HSync or CSync)
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ADV7850