Analog Devices ADV7181B Manual page 80

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