Dcm Channel Power Down Control - Analog Devices ADV7850 Hardware Manual

coeff_part, Addr A0 (VFE), Address 0xBF[0]
This control is used for power reduction. It should be set to 1 when the input video is above 170 MHz.
Function
coeff_part
1
0 
filt_gain[3:0], Addr A0 (VFE), Address 0x24[3:0]
This control is used to program the DCM filter gain.
Function
filt_gain[3:0]
0000 <<

DCM Channel Power Down Control

8.2.1
The ADV7850 allows for individual control of the DCM channels. The power-down controls are enabled by dcm_ch_en.
dcm_ch_enable, Addr A0 (VFE), Address 0x23[7]
This control is used to provide manual control of the DCM channels.
Function
dcm_ch_enable
1
0 <<
dcm_ch_en0, Addr A0 (VFE), Address 0x23[0]
This control is used to power up channel 0.
Function
dcm_ch_en0
1
0 <<
dcm_ch_en1, Addr A0 (VFE), Address 0x23[1]
This control is used to power up channel 1.
Function
dcm_ch_en1
1
0 <<
dcm_ch_en2, Addr A0 (VFE), Address 0x23[2]
This control is used to power up channel 2.
Rev. A May 2012
Description
Bypass CP core
Enable normal mode
Description
Default
Description
Manual channel power up control
Automatic power up
Description
Power up channel 0
Power down channel 0
Description
Power up channel 1
Power down channel 1
229
ADV7850