Field Timing Controls; Table 62: Field Default Timing - Analog Devices Advantiv ADV7604 Hardware Manual

DE_V_START[3:0] , CP Map, Address 0x8E[7:4]
This bit is used to adjust the start of the VBI position.
Function
DE_V_START[3:0]
0000
DE_V_END[3:0] , CP Map, Address 0x8E[3:0]
This bit is used to adjust the end of the VBI position.
Function
DE_V_END[3:0]
0000

10.9.5 FIELD Timing Controls

Programming of the FIELD timing signals is listed in this section. The FIELD signal is shown in
Figure 94, Figure 95,
adjusted in the described manner. (Progressive systems do not have a FIELD signal.)
Characteristic
START_FO
END_FO range maximum
START_FO
END_FO range maximum
START_FE[3:0] Start FIELD Even Signal , CP Map, Address 0x80, [7:4]
This 4-bit word operates in a twos compliment mode. Shifting the Start FIELD Even edge towards
active video is achieved by selecting from the range 0x0 to 0x7. Shifting the Start FIELD Even edge
away from active video is achieved by selecting from the range 0x8 to 0xF. One LSB increment is
equivalent to one line shift.
Examples of how to control the Even field section of the FIELD timing signal:
START_FE[3:0]
0000
0001
0011
0111
1111
1101
1000
1
Closer to active video
2
Away from active video
Rev. F August 2010
Description
Adjusts start of VBI position
Description
Adjusts end of VBI position
Figure 96, Figure 97,

Table 62: FIELD Default Timing

Units
Line
Line
Hex Result
0x0 No move (default)
0x1 1 HS shift later than default
0x3 3 HS shift later than default
0x0 7 HS shift later than default
0xF 1 HS shift earlier than default
0xD 3 HS shift earlier than default
0x8 8 HS shift earlier than default
Figure 98, Figure 100, and
525i 625i 525p
7 7 n/a
8 8 n/a
285
Figure 101 and can be
625p 720p
n/a n/a
n/a n/a
Note
1
Minimum →
Maximum →
2
Minimum ←
Maximum ←
ADV7604
1080i
7
8