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CS4954 数据表(PDF) 39 Page - Cirrus Logic |
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CS4954 数据表(HTML) 39 Page - Cirrus Logic |
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39 / 56 page ![]() CS4954 CS4955 DS278PP4 39 Control Register 5 Address 0 ×05 CONTROL_5 Read/Write Default Value = 00h Control Register 6 Address 0 ×06 CONTROL_6 Read/Write Default Value = 00h Bit Number 76 5432 10 Bit Name RSVD LOW IMP EN COM EN LEN CEN REN GEN B Default 00 0000 00 Bit Mnemonic Function 7- reserved 6LOW IMP selects between high output impedance (0) or low output impedance (1) mode of DACs 5EN COM enable DAC for composite output 0: tri-state, 1: enable 4EN L enable s-video DAC for luma output 0: tri-state, 1: enable 3EN C enable s-video DAC for chroma output 0: tri-state, 1: enable 2EN_R enable rgb video DAC for red output 0: tri-state, 1: enable 1EN_G enable rgb video DAC for green output 0: tri-state, 1: enable 0EN_B enable rgb video DAC for blue output 0: tri-state, 1: enable Bit Number 76 54 32 10 Bit Name 656 SYNC OUT CLIP OFF TTXEN COM2 TTXEN COM1 TTXEN SVID BSYNC DIS GSYNC DIS RSYNC DIS Default 00 00 00 00 Bit Mnemonic Function 7 656 SYNC OUT Enable (=1) output of hsync and vsync in the ITU R.BT656 mode 6CLIP OFF Clipping input signals disable (0: clipping active 1: no clipping) 5 TTXEN COM2 Enable teletext at the composit2 output (0: disable teletext, 1 : enable teletext) 4 TTXEN COM1 Enable teletext at the composit1 output ( 0: disable teletext, 1 : enable teletext) 3 TTXEN SVID Enable teletext at the s-video output ( 0: disable teletext, 1: enable teletext) 2 BSYNC DIS Disable syncs in the blue or v output (0: enable syncs, 1: disable syncs) 1 GSYNC DIS Disable syncs in the green or u output ( 0: enable syncs, 1: disable syncs) 0 RSYNC DIS Disable syncs in the red or y output (0: enable syncs, 1: disable syncs) |
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