ADV7180
Bits (Shading Indicates Default
State)
Comments
LQFP-64 LFCSP-40
Subaddress Register
Bit Description
Notes
7
6
5
4
3
2
1
0
0x34
HS Position Control 1
HSE[10:8]. HS end
allows positioning of
the HS output within
the video line.
0
0
0
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
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
HS Position Control 2
HSB[7:0] See above,
using HSB[10:0] and
HSE[10:0], users can
program the position
and length of HS output
signal.
0
0
0
1
0
0x36
0x37
HS Position Control 3
Polarity
HSE[7:0] See above.
0
0
0
0
0
0
0
0
0
0
0
1
PCLK. Sets polarity of
LLC1.
Invert polarity
Normal polarity as per the
timing diagrams
Reserved.
Set to 0
PF. Sets the FIELD
polarity.
0
1
Active high
Active low
Reserved.
Set to 0
PVS. Sets the VS
polarity.
0
1
Active high
Active low
Reserved.
0
Set to 0
PHS. Sets HS polarity.
0
1
Active high
Active low
0x38
NTSC Comb Control
YCMN[2:0]. Luma
comb mode, NTSC.
0
1
1
1
1
0
0
0
1
1
0
0
1
0
1
Adaptive 3-line, 3-tap luma
Use low-pass notch
Fixed luma comb (2-line)
Fixed luma comb (3-line)
Fixed luma comb (2-line)
Top lines of memory
All lines of memory
Bottom lines of memory
CCMN[2:0]. Chroma
comb mode, NTSC.
0
0
0
3-line adaptive for
CTAPSN = 01
4-line adaptive for
CTAPSN = 10
5-line adaptive for
CTAPSN = 11
1
1
0
0
0
1
Disable chroma comb
Fixed 2-line for
CTAPSN = 01
Fixed 3-line for
CTAPSN = 10
Fixed 4-line for
CTAPSN = 11
Top lines of memory
All lines of memory
1
1
1
1
0
1
Fixed 3-line for
CTAPSN = 01
Fixed 4-line for
CTAPSN = 10
Fixed 5-line for
CTAPSN = 11
Fixed 2-line for
CTAPSN = 01
Fixed 3-line for
CTAPSN = 10
Fixed 4-line for
CTAPSN = 11
Bottom lines of memory
CTAPSN[1:0]. Chroma
comb taps, NTSC.
0
0
1
1
0
1
0
1
Adapts three to two lines
Not used
Adapts five to three lines
Adapts five to four lines
Rev. A | Page 88 of 112
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