CS4954-CQ View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CS4954-CQ Datasheet PDF : 56 Pages
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CS4954 CS4955
Control Register 3
Address
Bit Number
Bit Name
Default
0×03
7
0
CONTROL_3 Read/Write
Default Value = 00h
6
5
4
3
2
1
RESERVED
FD THR C1 FD THR C2 FD THR SV FD THR EN
0
0
0
0
0
0
0
CBAR
0
Bit
Mnemonic
Function
7:5
-
reserved
4
FD THR C1
feedthrough enabled for composite 1 output (0 = off, 1 = on)
3
FD THR C2
feedthrough enabled for composite 2 output (0 = off, 1 = on)
2
FD THR SV
feedthrough enabled for s-video (on luma signal) (0 = off, 1 = on)
1
FD THR_EN
Enable (1 = enable) input to feed through during inactive lines
0
CBAR
internal color bar generator (0 = off, 1 = on)
Control Register 4
Address
Bit Number
Bit Name
Default
0×04
7
CB_H_SEL
0
CONTROL_4 Read/Write
Default Value = 3Fh
6
5
4
3
CB_FLD_SEL COMDAC_PD SVIDLUM_PD SVIDCHR_PD
0
1
1
1
2
R_PD
1
1
G_PD
1
0
B_PD
1
Bit
Mnemonic
Function
7
CB_H_SEL
Composite Blank / HSYNC output select (1 = CB select, 0 = HSYNC select)
6
CB_FLD_SEL Composite Blank / FIELD output select (1 = CB select, 0 = HSYNC select)
power down composite DAC
5
COMDAC_PD
0: power up, 1: power down
power down luma s-video DAC
4
SVIDLUM_PD
0: power up, 1: power down
power down chroma s-video DAC
3
SVIDCHR_PD
0: power up, 1: power down
power down red rgb video DAC
2
R_PD
0: power up, 1: power down
power down green rgb video DAC
1
G_PD
0: power up, 1: power down
power down blue rgb video DAC
0
B_PD
0: power up, 1: power down
38
DS278PP4
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