Регистры H616: TV Encoder Notch Filter Frequency Register

TVE_108_REG

7.2.5. TV Encoder Notch Filter Frequency Register - адрес: 0x6520108 0x6524108 (смещение: 0x0108)

31 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 16
15 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 00

Unused

Bits 31 : 3

NOTCH_FREQ

Bits 2 : 0
R/W
0x2

Luma notch filter center frequency selection
These bits select the luma notch filter (which is a band-reject filter) center frequency.
In two of the selections, the filter width affects also the selection of the center frequency.
000: 1.1875
001: 1.1406
010: 1.0938 when notch_wide value is B 1 (this selection is proper for CCIR-NTSC), or 1.0000 when notch_wide value is B'0'
011: 0.9922. This selection is proper for NTSC with square pixels
100: 0.9531. This selection is proper for PAL with square pixel
101: 0.8359 when notch_wide value is B 1 (this selection is proper for
CCIR-PAL), or 0.7734 when notch_wide value is B'0'
110: 0.7813
111: 0.7188

Bit fields structure

typedef union tve_108_reg { struct { unsigned notch_freq : 3; unsigned unused0 : 29; } b; unsigned long w; } TVE_108_REG