ADV7180
Data Sheet
Bits
(Shading Indicates Default State)
Subaddress
Register
Bit Description
7
6
5
4
3
2
1
0
Comments
Notes
0x2E
Chroma Gain
Control 2,
Chroma Gain2
(CG)
CMG[7:0]/CG[7:0]; chroma
manual gain lower eight
bits; see CMG[11:8]/
0
0
0
0
0
0
0
0
CMG[11:0] = see the CMG section
CMG[11:0] = see the CMG section
Min value = 0d,
Max value = 4095d
CG[11:8] for description
0x2F
Luma Gain
Control 1, Luma
Gain1 (LG)
LMG[11:8]/LG[11:8]; in
manual mode, luma gain
control can be used to
program a desired manual
luma gain; in auto mode,
it can be used to read
back the actual gain value
used
x
x
x
x
LAGC[1:0] settings decide in which
mode LMG[11:0] operates
Reserved
1
x
1
x
Set to 1
LAGT[1:0]; luma auto
matic gain timing allows
adjustment of the luma
AGC tracking speed
0
0
1
1
x
0
1
0
1
x
Slow (TC = 2 sec)
Medium (TC = 1 sec)
Fast (TC = 0.2 sec)
Adaptive
Only has an effect
if LAGC[1:0] is set
to autogain (001,
010, 011, or 100)
LMG[7:0]/LG[7:0]; luma
manual gain lower eight
bits; see LMG[11:8]/
x
x
x
x
LMG[11:0] - see the LMG section
LMG[11:0] =- see the LMG section
Min value = 1024d,
Max value = 4095d
0x30
0x31
Luma Gain
Control 2, Luma
Gain2 (LG)
LG[11:8] for description
Reserved
0
1
0
Set to default
VS/FIELD
Control 1
HVSTIM; selects where
within a line of video the
VS signal is asserted
0
1
Start of line relative to HSE
Start of line relative to HSB
HSE = HSYNC end
HSB = HSYNC begin
NEWAVMODE; sets the
EAV/SAV mode
0
1
EAV/SAV codes generated to suit
Analog Devices encoders
Manual VS/FIELD position controlled by
the 0x32, 0x33, and 0xE5 to 0xEA registers
Reserved
Reserved
VSBHE
0
0
0
0
Set to default
Set to default
0
0
0
1
0
0
0
0
1
0
0
NEWAVMODE bit
must be set high
0x32
0x33
0x34
VS/FIELD
Control 2
0
1
VS goes high in the middle of the
line (even field)
VS changes state at the start of the
line (even field)
VSBHO
0
1
VS goes high in the middle of the
line (odd field)
VS changes state at the start of the
line (odd field)
Reserved
VSEHE
0
0
0
Set to default
VS/FIELD
Control 3
0
1
VS goes low in the middle of the
line (even field)
NEWAVMODE bit
must be set high
VS changes state at the start of the
line (even field)
VSEHO
0
1
VS goes low in the middle of the line
(odd field)
VS changes state at the start of the
line odd field
HSE[10:8]; HS end allows
positioning of the HS
output within the
video line
HS output ends HSE[10:0] pixels after
the falling edge of HSYNC
Using HSB and
HSE the user can
program the
position and length
of the output
HSYNC
HS Position
Control 1
Reserved
0
Set to 0
HSB[10:8]; HS begin
allows positioning of
the HS output within
the video line
0
0
0
0
0
0
HS output starts HSB[10:0] pixels
after the falling edge of HSYNC
Reserved
0
0
Set to 0
0x35
0x36
HS Position
Control 2
HSB[7:0]; see Address 0x34,
using HSB[10:0] and
HSE[10:0], users can
program the position
and length of the HS
output signal
0
0
0
0
1
0
0
0
HS Position
Control 3
HSE[7:0]; see Address
0x35 description
0
0
0
0
Rev. G | Page 90 of 120
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