CS4954_06 datasheet(41/60 Pages) CIRRUS

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CS4954 CS4955

DS278F6

Control Register 3

Address

×03

CONTROL_3

Read/Write

Default Value = 00h

Control Register 4

Address

×04

CONTROL_4

Read/Write

Default Value = 3Fh

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.

Bit Number

654

3210

Bit Name

RESERVED

FD THR C1 FD THR C2 FD THR SV FD THR EN

CBAR

Default

000

0000

Bit

Mnemonic

Function

7:5

reserved

4FD THR C1

feedthrough enabled for composite 1 output (0 = off, 1 = on)

3FD THR C2

feedthrough enabled for composite 2 output (0 = off, 1 = on)

2FD THR SV

feedthrough enabled for s-video (on luma signal) (0 = off, 1 = on)

1FD THR_EN

Enable (1 = enable) input to feed through during inactive lines

CBAR

internal color bar generator (0 = off, 1 = on)

Bit Number

210

Bit Name

CB_H_SEL

CB_FLD_SEL(1) COMDAC_PD SVIDLUM_PD SVIDCHR_PD

R_PD

G_PD

B_PD

Default

111

Bit

Mnemonic

Function

CB_H_SEL

Composite Blank / HSYNC output select (1 = CB select, 0 = HSYNC select)

CB_FLD_SEL

Composite Blank / FIELD output select (1 = CB select, 0 = FIELD select)(1)

COMDAC_PD

power down composite DAC

0: power up, 1: power down

SVIDLUM_PD

power down luma s-video DAC

0: power up, 1: power down

SVIDCHR_PD

power down chroma s-video DAC

0: power up, 1: power down

2R_PD

power down red rgb video DAC

0: power up, 1: power down

1G_PD

power down green rgb video DAC

0: power up, 1: power down

0B_PD

power down blue rgb video DAC

0: power up, 1: power down

CS4954 Datasheet(PDF) 41 Page - Cirrus Logic

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