Analog Devices ADV7181BCP Manual page 80

ADV7181B
Subaddress Register
0x34 HS Position
Control 1
0x35 HS Position
Control 2
0x36 HS Position
Control 3
0x37 Polarity
0x38 NTSC
Comb
Control
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Bit Description
HSE[10:8]. HS end allows the
positioning of the HS output within
the video line.
Reserved.
HSB[10:8]. HS begin allows the
positioning of the HS output within
the video line.
Reserved.
HSB[7:0] Using HSB[10:0] and
HSE[10:0], the user can program the
position and length of HS output signal
HSE[7:0] See Notes, above.
PCLK. Sets the polarity of LLC1.
Reserved.
PF. Sets the FIELD polarity.
Reserved.
PVS. Sets the VS Polarity.
Reserved.
PHS. Sets the HS Polarity.
YCMN[2:0]. Luma
comb mode, NTSC.
CCMN[2:0]. Chroma
comb mode, NTSC.
CTAPSN[1:0]. Chroma
comb taps, NTSC.
Bits
7 6 5 4 3 2 1 0
0 0 0
0
0 0 0
0
0 0 0 0 0 0 1 0
.
0 0 0 0 0 0 0 0
0
1
0 0
0
1
0
0
1
0
0
1
0 0 0
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
1 0 0
1 0 1
1 1 0
1 1 1
0 0
0 1
1 0
1 1
Rev. B | Page 80 of 100
Comments Notes
HS output ends HSE[10:0] Using HSB and
pixels after the falling edge HSE,the user can
of Hsync program the
position and length
Set to 0
of the output Hsync.
HS output starts HSB[10:0]
pixels after the falling edge
of Hsync
Set to 0
Invert polarity
Normal polarity as per the
timing diagrams
Set to 0
Active high
Active low
Set to 0
Active high
Active low
Set to 0
Active high
Active low
Adaptive 3-line, 3-tap luma
Use low-pass notch
Fixed luma comb (2-line) Top lines of memory.
Fixed luma comb (3-Line) All lines of memory.
Fixed luma comb (2-line) Bottom lines of
memory.
3-line adaptive for
CTAPSN = 01
4-line adaptive for
CTAPSN = 10
5-line adaptive for
CTAPSN = 11
Disable chroma comb
Fixed 2-line for Top lines of
CTAPSN = 01
memory.
Fixed 3-line for
CTAPSN = 10
Fixed 4-line for
CTAPSN = 11
Fixed 3-line for All lines of memory.
CTAPSN = 01
Fixed 4-line for
CTAPSN = 10
Fixed 5-line for
CTAPSN = 11
Fixed 2-line for Bottom lines of
CTAPSN = 01
memory.
Fixed 3-line for
CTAPSN = 10
Fixed 4-line for
CTAPSN = 11
Adapts 3 lines – 2 lines
Not used
Adapts 5 lines – 3 lines
Adapts 5 lines – 4 lines