CS4955-CQZ View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CS4955-CQZ Datasheet PDF : 60 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(1) 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 = FIELD select)(1)
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
NOTE: 1. The FIELD pin (pin 9) remains an output pin in SLAVE mode. However, the FIELD pin state does not
toggle in SLAVE mode and its output state should be considered random.
DS278F6
41
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