TMC22151AKHC CADEKA [Cadeka Microcircuits LLC.], TMC22151AKHC Datasheet - Page 23

• Manufacturer Part Number: TMC22151AKHC
• Description: Multistandard Digital Video Decoder Three-Line Adaptive Comb Decoder Family, 8 & 10 bit
• Manufacturer: CADEKA [Cadeka Microcircuits LLC.]

PRODUCT SPECIFICATION
Control Register Definitions
Comb Filter Control (0F)
Sync Pulse Generator (10)
REV. 1.0.0 2/4/03
Reg
0F
0F
0F
0F
0F
0F
Reg
10
Reserved
STS
7
7
7
Bit
7
6-5
4
3-2
1
0
Bit
7-0
Name
Reserved
CAT
DCES
IPCF
YCCOMP
SYNC
STS
Name
STS
6
6
6
7-0
CAT
Description
Reserved, set to zero.
Adaption threshold. Fixes threshold at which different comb filters are selected.
D1 C
a) In 3 line comb filter architectures, the magnitude error between the component
b) In 2 line comb filters the magnitude differences between the same pair of lines
When set HIGH for D1 chroma filters:
This is used for 3 line comb filter architecture that are inhibited from adapting to 2
line comb filter architectures. The input to the XLUT is the magnitude error in C
between (0H & 1H) and (1H & 2H) on “C
between (0H & 1H) and (1H & 2H) on “C
Comb filter input select. Selects primary inputs to the comb filter.
YC or Composite input select. Selects YC inputs when HIGH and composite
inputs when LOW.
Sync processor select. The syncs are obtained by a LPF when HIGH and by the
comb filter when LOW.
STS
IPCF
0 0
0 1
1 0
1 1
5
data for that pixel selects the 3 line comb or adapts to a
2 line comb. On a “C
the XLUT with the magnitude difference between “C
of lines, but from pixel (x+3). Likewise on a “C
on pixel (x+5) is sent to the XLUT with the magnitude difference between “C
pixels” on the same lines but from pixel (x+4).
is always sent to the XLUT, On a “C
pixel” is used and on a “C
5
0
0
1
1
B
5
C
Description
Sync to sync 8 lsbs. Bottom 8 bits of the number of pixels between sync
pulses.
R
error signal. When set LOW for D1 chroma comb filters:
(continued)
Function
Flat video
LPF output
HPF output
Reserved
0
1
0
1
DCES
STS
4
4
5% of max error
15% of max error
25% of max error
50% of max error
4
B
pixel” the error signal selected on pixel (x+4) is sent to
R
STS
pixel” the preceding “C
3
3
3
IPCF
B
R
B
pixel” the error from the preceding “C
pixels” and the magnitude error
pixels”.
STS
2
2
2
R
pixel” the error signal selected
B
R
pixel” would be used.
YCCOMP
pixels” on the same pair
STS
1
1
1
TMC22x5yA
SYNC
STS
0
0
0
R
R
B
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