Analog Devices Advantiv ADV7604 Hardware Manual page 243

• The AV codes can be output on all channels or spread across the Y and PrPb buses for 20-
bit output modes.
• The F and V bits within the codes can be inserted directly or can be inverted before
insertion.
• The position of the codes within the data stream (timing of the insertion) can be set to a
default or can be slaved off the signal from the selected HS input pin.
The insertion point for the AV codes is predetermined by default and is adjusted automatically to
suit the current video standard as per the
for nonstandard signals, however, the AV code insertion point can also be taken off the HSync
signal before it goes to the selected HS input pin. This gives the user great flexibility since the
HSync signal position can be programmed to quite a wide range with LLC accuracy.
AVCODE_INSERT_EN , AV Code Insertion Enable , IO Map, Address 0x05, [2]
Function
AVCODE_INSERT_EN
0
1
AV_POS_SEL, Select AV Code Position , CP Map, Address 0x7B, [2]
Function
AV_POS_SEL
0
1
AV_INV_V, Invert V Bit in AV Code , CP Map, Address 0x7B, [6]
Function
AV_INV_V
0
1
AV_INV_F, Invert F Bit in AV Code , CP Map, Address 0x7B, [7]
Function
AV_INV_F
0
1
DATA_BLANK_EN, Data Blanking Enable , IO Map, Address 0x05, [3]
Function
DATA_BLANK_EN
0
1
Rev. F August 2010
PRIM_MODE[3:0]
Description
Does not insert AV codes into the data stream
Enables the insertion of AV codes
Description
Inserts SAV code at the falling edge of the HSync signal and the EAV
code at the rising edge of the HSync signal
Uses predetermined (default) position for AV codes
Description
Inserts V bit with default polarity
Inverts V bit before inserting it into the AV code
Description
Inserts F bit with default polarity
Inverts F bit before inserting it into the AV code
Description
Output clamped and gained data during the horizontal and vertical
blanking time
Replaces data in horizontal and vertical blanking period with default
values
and VID_STD[5:0]
243
ADV7604
settings. To cater