PRODUCT SPECIFICATION
TMC22x5yA
Control Register Definitions (continued)
Burst Threshold (04)
7
6
5
4
3
2
1
0
BTH
Reg
Bit
Name
Description
04
7-0
BTH
Burst threshold. The 8 bit value to be compared against the demodulated
U and V component data. If over 127 lines occur in a field in which the burst
is below this threshold, then the color is set to chroma black for the next field.
Pedestal (05)
7
6
5
4
3
2
1
0
PED
Reg
Bit
Name
Description
05
7-0
PED
Pedestal level. An 8 bit magnitude subtracted from the luma data to remove
the setup before processing by the output matrix.
Luma Processor Control (06)
7
6
5
4
3
2
1
0
Reserved
ANEN
ANR
ANT
YSEL
NOTCH
Reg
06
Bit
7-6
5
Name
Reserved
ANEN
ANR
Description
Reserved, set to zero.
06
Adaptive notch enable. Enables adaptive notch when HIGH.
Adaptive notch rounding. Sets adaptive notch rounding point.
06
4
ANR
Function
Round to 10 bits
Round to 8 bits
0
1
06
3-2
ANT
Adaptive notch threshold level. Sets the adaptive notch threshold.
ANT
00
Function
Magnitude difference less than 32
Magnitude difference less than 24
Magnitude difference less than 16
Magnitude difference less than 8
01
10
11
06
06
1
0
YSEL
Adaptive notch select. Selects adaptive notch filter response.
YSEL
Function
0
1
Adaptive notch response ANF1
Adaptive notch response ANF2
NOTCH
Notch enable. Adaptive notch filter ANF3 selected when HIGH and ANEN is
HIGH, non-adaptive notch filter selected when HIGH and ANEN is LOW.
Function may be overridden by XSF (Reg 0E, bits 5-4).
REV. 1.0.0 2/4/03
15
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
