Datasheet

2−17
2.20.3 Operation Mode Controls Register
Address 02h
Default 00h
7 6 5 4 3 2 1 0
Reserved
Color burst
reference enable
TV/VCR mode
White peak
disable
Color subcarrier
PLL frozen
Luma peak
disable
Power down mode
Color burst reference enable
0 = Color burst reference for AGC disabled (default)
1 = Color burst reference for AGC enabled
TV/VCR mode
00 = Automatic mode determined by the internal detection circuit. (default)
01 = Reserved
10 = VCR (nonstandard video) mode
11 = TV (standard video) mode
With automatic detection enabled, unstable or nonstandard syncs on the input video forces the detector into the VCR
mode. This turns off the comb filters and turns on the chroma trap filter.
White peak disable
0 = White peak protection enabled (default)
1 = White peak protection disabled
Color subcarrier PLL frozen:
0 = Color subcarrier PLL increments by the internally generated phase increment. (default)
GLCO pin outputs the frequency increment.
1 = Color subcarrier PLL stops operating.
GLCO pin outputs the frozen frequency increment.
Luma peak disable
0 = Luma peak processing enabled (default)
1 = Luma peak processing disabled
Power down mode:
0 = Normal operation (default)
1 = Power down mode. A/Ds are turned off and internal clocks are reduced to minimum.