Datasheet

2−20
2.20.5 Autoswitch Mask Register
Address 04h
Default FCh
7 6 5 4 3 2 1 0
Reserved SEC_OFF N443_OFF PALN_OFF PALM_OFF Reserved
N443_OFF:
0 = NTSC443 is unmasked from the autoswitch process. Autoswitch does switch to NTSC443.
1 = NTSC443 is masked from the autoswitch process. Autoswitch does not switch to NTSC443. (default)
PALN_OFF:
0 = PAL-N is unmasked from the autoswitch process. Autoswitch does switch to PAL-N.
1 = PAL-N is masked from the autoswitch process. Autoswitch does not switch to PAL-N. (default)
PALM_OFF:
0 = PAL-M is unmasked from the autoswitch process. Autoswitch does switch to PAL-M.
1 = PAL-M is masked from the autoswitch process. Autoswitch does not switch to PAL-M. (default)
SEC_OFF:
0 = SECAM is unmasked from the autoswitch process. Autoswitch does switch to SECAM.
1 = SECAM is masked from the autoswitch process. Autoswitch does not switch to SECAM. (default)
2.20.6 Software Reset Register
Address 05h
Default 00h
7 6 5 4 3 2 1 0
Reserved Reset
Reset. The software reset reinitializes all the registers to their default values:
0 = Normal operation (default)
1 = Reset device
2.20.7 Color Killer Threshold Control Register
Address 06h
Default 10h
7 6 5 4 3 2 1 0
Reserved Automatic color killer Color killer threshold
Automatic color killer:
00 = Automatic mode (default)
01 = Reserved
10 = Color killer enabled, the CbCr terminals are forced to a zero color state.
11 = Color killer disabled
Color killer threshold:
11111 = −30 dB (minimum)
10000 = −24 dB (default)
00000 = −18 dB (maximum)