Analog Devices ADV7850 Hardware Manual page 265

Fast switching 4:1 hdmi 1.4 receiver with 3d-comb decoder and digitizer
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ch2_sspd_cont, Addr 44 (CP), Address 0x41[1]
This control is used to set the synchronization source polarity detection mode for sync channel 2 SSPD.
Function
ch2_sspd_cont
0
1 
ch1_trig_sspd, Addr 44 (CP), Address 0x85[2]
This control is used to trigger a synchronization source and polarity detector for sync channel 1 SSPD. A 0 to 1 transition in this bit
restarts the autosync detection algorithm. This is not a self clearing bit and must be set to 0 to prepare for the next trigger.
Function
ch1_trig_sspd
0 
1
ch2_trig_sspd, Addr 44 (CP), Address 0x41[2]
This control is used to trigger a synchronization source and polarity detector for sync channel 2 SSPD. A 0 to 1 transition in this bit
restarts the autosync detection algorithm. This is not a self clearing bit and must be set to 0 to prepare for the next trigger.
Function
ch2_trig_sspd
0 
1
ch1_sync_src[1:0], Addr 44 (CP), Address 0x85[4:3]
This control is used to select the synchronization signals processed by sync channel 1 SSPD.
Function
ch1_sync_src[1:0]
00 
01
10
ch2_sync_src[1:0], Addr 44 (CP), Address 0x41[4:3]
This control is used to select the synchronization signals processed by sync channel 2 SSPD.
Function
ch2_sync_src[1:0]
00 
01
10
ch1_pol_man_en, Addr 44 (CP), Address 0x85[7]
This control is used to override for polarity detection by sync channel 1 SSPD. ch1_pol_man_en must be set to 1 for this control to
become active.
Rev. A May 2012
Description
Sync channel 2 SSPD works in one-shot mode (triggered by a 0 to 1 transition on
ch2_trig_sspd bit)
Sync channel 2 SSPD works in continuous mode
Description
Default - transition 0 to 1 restarts autosync detection algorithm
Transition 0 to 1 restarts autosync detection algorithm
Description
Default - transition 0 to 1 restarts autosync detection algorithm
Transition 0 to 1 restarts autosync detection algorithm
Description
Autodetect mode for synchronization source. Use results of autodetection for synchronization
signal routing. Result can be read back via ch1_cur_sync[1:0] bits.
Manual setting: separate HSync and VSync to sync channel 1 SSPD.
Manual setting
Description
Autodetection mode for synchronization source. Use results of autodetection for
synchronization signal routing. Result can be read back via ch2_cur_sync[1:0] bits.
Manual setting: separate HSync and VSync to sync channel 2 SSPD.
Manual sett
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ADV7850

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