CS8416-CS datasheet(25/48 Pages) CIRRUS

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CS8416

DS578PP2

8 CONTROL PORT REGISTER BIT DEFINITIONS

8.1

Control0 (00h)

TRUNC – Determines if the audio word length is set according to the incoming channel status data as decoded by

the AUX[3:0] bits. The resulting word length in bits is 24-AUX[3:0].

Default = 0

0 – incoming data is not truncated

1 – incoming data is truncated according to the length specified in the channel status data

Truncation occurs before the de-emphasis filter. TRUNC has no effect on output data if de-emphasis

filter is not used.

Reserved

[1:0] – These bits may change state depending on the input audio data.

8.2

Control1 (01h)

SWCLK - Lets OMCK determine RMCK, OSCLK, OLRCK when PLL loses lock

Default = ‘0’

0 – Output clocks determined by PLL

1 – Output clocks determined by OMCK

RMCKF – Recovered Master Clock Frequency

Default = “0”

0 – Frequency is 256 FS

1 – Frequency is 128 FS

MUTESAO - Mute control for the serial audio output port

Default = ‘0’

0- SDOUT (Not Muted)

1 – SDOUT (Muted)

HOLD[1:0] – Determine how received audio sample is affected when a receive error occurs

Default = “00”

00 – hold last audio sample

01 – replace the current audio sample with 00 (mute)

10- do not change the received audio sample

11 - reserved

5432

TRUNC

Reserved

5432

SWCLK

MUTESAO

INT1

INT0

HOLD1

HOLD0

RMCKF

CHS

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