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CS4954 CS4955
42 DS278F6
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
76543210
Bit Name
RSVD LOW IMP EN COM EN LEN CEN REN GEN B
Default
00000000
Bit Mnemonic Function
7-
reserved
6LOW IMP
selects between tri-state output (0) or output enabled (1) mode of DACs
5EN COM
enable composite (CVBS) DAC 0: high-impedance, 1: enable
4EN L
enable S-VIDEO Y DAC for luma output 0: high-impedance, 1: enable
3EN C
enable S-VIDEO C DAC for chroma output 0: high-impedance, 1: enable
2EN_R
enable RGB video R DAC for red output 0: high-impedance, 1: enable
1EN_G
enable RGB video G DAC for green output 0: high-impedance, 1: enable
0EN_B
enable RGB video B DAC for blue output 0: high-impedance, 1: enable
Bit Number
76543210
Bit Name
656 SYNC
OUT
CLIP
OFF
TTXEN
COM2
TTXEN
COM1
TTXEN
SVID
BSYNC
DIS GSYNC DIS RSYNC DIS
Default
00000000
Bit Mnemonic Function
7 656 SYNC OUT
Enable (=1) output of hsync and vsync when in ITU R.BT656 mode
6CLIP OFF
Clipping input signals disable (0: clipping active 1: no clipping)
5 TTXEN COM2
Enable teletext at the composite 2 output (0: disable teletext, 1 : enable teletext)
4 TTXEN COM1
Enable teletext at the composite 1 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)
1GSYNC 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)