Functional Description
2.11.8Luminance Processing Control 2 Register
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| 07h |
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Default |
| 00h |
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7 |
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| 4 | 3 | 2 | 1 |
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Luma filter select [1:0] |
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| Reserved | Peaking gain [1:0] |
| Reserved |
Luma filter selected [1:0]:
00 = Luminance adaptive comb enabled (default on CVBS)
01 = Luminance adaptive comb disabled (trap filter selected)
10 = Luma comb/trap filter bypassed (default on
Peaking gain [1:0]:
00 = 0 (default)
01 = 0.5
10 = 1
11 = 2
2.11.9Luminance Processing Control 3 Register
Subaddress |
| 08h |
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Default |
| 02h |
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| Trap filter select [1:0] |
Trap filter select [1:0] selects one of the four trap filters to produce the luminance signal by removing the chrominance signal from the composite video signal. The stop band of the chroma trap filter is centered at the chroma subcarrier frequency with the
Trap filter
Filter select [1:0] | NTSC | PAL | |
00 | = | 1.2129 | 1.2129 |
01 | = | 0.8701 | 0.8701 |
10 | = (default) | 0.7183 | 0.7383 |
11 = | 0.5010 | 0.5010 |
2.11.10 | Luminance Brightness Register | ||
Subaddress |
| 09h |
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Default |
| 80h |
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7
6
5
4
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2
1
0
Brightness [7:0]
Brightness [7:0]: This register works for CVBS,
1111 1111 = 255 (bright)
1000 0000 = 128 (default)
0000 0000 = 0 (dark)
TVP5147M1PFP | 35 |