ADV7184 Datasheet, PDF (82/108 Pages) Analog Devices – Multiformat SDTV Video Decoder with Fast Switch Overlay Support

ADV7184
Address Register
0x34
HS Position Control 1
0x35
HS Position Control 2
0x36
HS Position Control 3
0x37
Polarity
0x38
NTSC Comb Control
0x39
PAL Comb Control
Bit Description
VSEHO
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]. See above, using HSB[10:0] and
HSE[10:0], the user can program the
position and length of HS output signal.
HSE[7:0]. See above.
PCLK. Sets the polarity of LLC1.
Reserved.
PF. Sets the FIELD polarity.
Reserved.
PVS. Sets the VS Polarity.
Reserved.
PHS. Sets HS Polarity.
YCMN[2:0]. Luma Comb Mode, NTSC.
CCMN[2:0]. Chroma Comb Mode, NTSC.
CTAPSN[1:0]. Chroma Comb Taps, NTSC.
YCMP[2:0]. Luma Comb mode, PAL.
CCMP[2:0]. Chroma Comb mode, PAL.
Bit
76543 2
0
1
0
0
000
0
00000 0
00000 0
0
0
1
0
0
1
0
0
1
0
1
1
1
1
000
100
101
110
111
00
01
10
11
0
1
1
1
1
000
100
101
110
111
1 0 Comments
Notes
VS goes low in the middle of the line
(odd field)
VS changes state at the start of the
line odd field
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
Set to 0
HS output starts HSB[10:0] pixels
after the falling edge of HSYNC
Set to 0
10
00
0 Invert polarity
1 Normal polarity as per the timing
diagrams
0
Set to 0
Active high
Active low
Set to 0
Active high
Active low
Set to 0
Active high
Active low
0 0 Adaptive 3-line, 3-tap luma
0 0 Use low-pass notch
0 1 Fixed luma comb (2-line)
1 0 Fixed luma comb (3-Line)
1 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
Not used
Adapts 3 lines – 2 lines
Adapts 5 lines – 3 lines
Adapts 5 lines – 4 lines
0 0 Adaptive 5-line, 3-tap luma comb
0 0 Use low-pass notch
1 0 Fixed luma comb
1 0 Fixed luma comb (5-line)
1 1 Fixed luma comb (3-line)
3-line adaptive for CTAPSP = 01
4-line adaptive for CTAPSP = 10
5-line adaptive for CTAPSP = 11
Disable chroma comb
Fixed 2-line for CTAPSP = 01
Fixed 3-line for CTAPSP = 10
Fixed 4-line for CTAPSP = 11
Fixed 3-line for CTAPSP = 01
Fixed 4-line for CTAPSP = 10
Fixed 5-line for CTAPSP = 11
Fixed 2-line for CTAPSP = 01
Fixed 3-line for CTAPSP = 10
Fixed 4-line for CTAPSP = 11
Top lines of memory
All lines of memory
Bottom lines of memory
Top lines of memory
All lines of memory
Bottom lines of memory
Top lines of memory
All lines of memory
Bottom lines of memory
Top lines of memory
All lines of memory
Bottom lines of memory
Rev. 0 | Page 82 of 108