CS4955-CQZ データシートの表示（PDF） - Cirrus Logic
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CS4955-CQZ Datasheet PDF : 60 Pages
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CS4954 CS4955
Control Register 5
Address
Bit Number
Bit Name
Default
0×05
CONTROL_5 Read/Write
7
RSVD
0
6
LOW IMP
0
5
EN COM
0
4
EN L
0
Default Value = 00h
3
EN C
0
2
EN R
0
1
EN G
0
Bit
Mnemonic
Function
7
-
reserved
6
LOW IMP selects between tri-state output (0) or output enabled (1) mode of DACs
5
EN COM enable composite (CVBS) DAC 0: high-impedance, 1: enable
4
EN L
enable S-VIDEO Y DAC for luma output 0: high-impedance, 1: enable
3
EN C
enable S-VIDEO C DAC for chroma output 0: high-impedance, 1: enable
2
EN_R enable RGB video R DAC for red output 0: high-impedance, 1: enable
1
EN_G enable RGB video G DAC for green output 0: high-impedance, 1: enable
0
EN_B
enable RGB video B DAC for blue output 0: high-impedance, 1: enable
0
EN B
0
Control Register 6
Address
Bit Number
Bit Name
Default
0×06
CONTROL_6 Read/Write
7
656 SYNC
OUT
0
6
CLIP OFF
0
5
TTXEN
COM2
0
4
TTXEN
COM1
0
Default Value = 00h
3
TTXEN
SVID
0
2
1
0
BSYNC DIS GSYNC DIS RSYNC DIS
0
0
0
Bit
Mnemonic
Function
7
656 SYNC OUT Enable (=1) output of hsync and vsync when in ITU R.BT656 mode
6
CLIP 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)
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)
42
DS278F6
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