STA369BW datasheet(39/89 Pages) STMICROELECTRONICS

39 / 89 page

DocID022033 Rev 2

39/89

STA369BW

happens. At the same time any processing related to the I2C configuration should be issued

only after the serial audio interface and the internal PLL are synchronous again.

Note:

Any mute or volume change causes some delay in the completion of the I2C operation due

to the soft-volume feature. The soft-volume phase change must be finished before any clock

desynchronization.

8.2.4

Delay serial clock enable

8.2.5

Channel input mapping

Each channel received via I2S can be mapped to any internal processing channel via the

channel input mapping registers. This allows for flexibility in processing. The default settings

of these registers map each I2S input channel to its corresponding processing channel.

Table 21. Delay serial clock enable

Bit

R/W

RST

Name

Description

5R/W

DSCKE

0: No serial clock delay

1: Serial clock delay by 1 core clock cycle to tolerate

anomalies in some I2S master devices

Table 22. Channel input mapping

Bit

R/W

RST

Name

Description

6R/W

C1IM

0: Processing channel 1 receives left I2S input

1: Processing channel 1 receives right I2S input

7R/W

C2IM

0: Processing channel 2 receives left I2S input

1: Processing channel 2 receives right I2S input

STA369BW Datasheet(PDF) 39 Page - STMicroelectronics