Data Sheet
ADV7180
Bits
(Shading Indicates Default State)
Subaddress
Register
Bit Description
7
6
5
4
3
2
1
0
0
1
Comments
Notes
0x37
Polarity
PCLK; sets polarity of LLC
Invert polarity
Normal polarity as per the timing
diagrams
Reserved
0
0
Set to 0
PF; sets the FIELD polarity
0
1
Active high
Active low
Reserved
0
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 low
Active high
YCMN[2:0]; luma comb
mode, NTSC
0
1
1
1
1
0
0
0
1
1
0
0
1
0
1
Adaptive three-line, three-tap luma
Use low-pass notch
Fixed luma comb (two-line)
Fixed luma comb (three-line)
Fixed luma comb (two-line)
0x38
NTSC comb
control
Top lines of memory
All lines of memory
Bottom lines of
memory
CCMN[2:0]; chroma
comb mode, NTSC
0
0
0
Three-line adaptive for CTAPSN = 01,
Four-line adaptive for CTAPSN = 10,
Five-line adaptive for CTAPSN = 11
1
1
0
0
0
1
Disable chroma comb
Fixed two-line for CTAPSN = 01,
Fixed three-line for CTAPSN = 10,
Fixed four-line for CTAPSN = 11
Top lines of memory
All lines of memory
1
1
1
1
0
1
Fixed three-line for CTAPSN = 01,
Fixed four-line for CTAPSN = 10,
Fixed five-line for CTAPSN = 11
Fixed two-line for CTAPSN = 01,
Fixed three-line for CTAPSN = 10,
Fixed four-line for CTAPSN = 11
Bottom lines of
memory
CTAPSN[1:0]; chroma
comb taps, NTSC
0
0
1
1
0
1
0
1
Not used
Adapts three lines to two lines
Adapts five lines to three lines
Adapts five lines to four lines
Adaptive five-line, three-tap luma comb
Use low-pass notch
0x39
PAL comb
control
YCMP[2:0]; luma
comb mode, PAL
0
1
1
1
1
0
0
0
1
1
0
0
1
0
1
Fixed luma comb (three-line)
Fixed luma comb (five-line)
Fixed luma comb (three-line)
Top lines of memory
All lines of memory
Bottom lines of
memory
CCMP[2:0]; chroma
comb mode, PAL
0
0
0
Three-line adaptive for CTAPSN = 01,
Four-line adaptive for CTAPSN = 10,
Five-line adaptive for CTAPSN = 11
1
1
0
0
0
1
Disable chroma comb
Fixed two-line for CTAPSN = 01
Fixed three-line for CTAPSN = 10
Fixed four-line for CTAPSN = 11
Fixed three-line for CTAPSN = 01
Fixed four-line for CTAPSN = 10
Fixed five-line for CTAPSN = 11
Fixed two-line for CTAPSN = 01
Top lines of memory
All lines of memory
1
1
1
1
0
1
Bottom lines
of memory
Fixed three-line for CTAPSN = 10
Fixed four-line for CTAPSN = 11
Not used
CTAPSP[1:0]; chroma
comb taps, PAL
0
0
1
1
0
1
0
1
Adapts five lines to three lines (two taps)
Adapts five lines to three lines (three taps)
Adapts five lines to four lines (four taps)
Rev. G | Page 91 of 120
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