Secondary Auto Graphics Control - Analog Devices Advantiv ADV7604 Hardware Manual

2. AV_POS_SEL, CP Map, Address 0x7B, [2] = 1 AND the following
zero values. The values set in the user inputs will be used to insert the EAV/SAV time codes and
blank the data.
3. AV_POS_SEL , CP Map, Address 0x7B, [2] = 1 AND the following
An assumption is made that active video sits between 18.75% and 96.875% of the horizontal line
(based on programmed PLL divide ratio), and that the VBI regions extends for
IGNR_CLMP_VS_MAR_START[4:0] lines before the VSync and for
IGNR_CLMP_VS_MAR_END[4:0] lines after the VSync.

10.15.2 Secondary Auto Graphics Control

The following user inputs control time code insertion and/or data blanking.
CP_START_SAV[11:0], CP Map, Address 0xA2, [7:0] and 0xA3, [7:4]
CP_START_SAV[11:0] s pecifies the total number of pixels between the falling edge of output HS
and the start of active video minus 4 pixels.
Function
CP_START_SAV[11:
0]
0x0
xxxxxxxxxxx
CP_START_EAV[11:0], CP Map, Address 0xA3, [3:0] and 0xA4, [7:0]
CP_START_EAV[11:0] specifies the end of active video on a horizontal line in sample units with
respect to HSync.
Function
CP_START_EAV[1
1:0]
0x0
xxxxxxxxxxx
Rev. F August 2010
Description
Default value. Total number of pixels between start of non active video and
the active video in a line is automatically set to
PLL_DV_RATIO[11:0].
Sets the total number of pixels between start of non active video and active
video within a horizontal line of video.
Description
Default value. Total number of pixels between end of active video and start of
active video in a line is automatically set to
PLL_DV_RATIO[11:0].
Sets the total number of pixels between end of active video and start of active
video
96.875% of value set in
309
ADV7604
user inputs are set to non
user inputs are set to zero.
18.75% of value set in