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8 src output serial port clock control (08h), Src out, Put serial port clock control (08h) – Cirrus Logic CS8422 User Manual

Page 52: Src output serial port, Cs8422

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52

DS692F2

CS8422

0000 - ILRCK = MCLK/64

0001 - ILRCK = MCLK/96

0010 - ILRCK = MCLK/128

0011 - ILRCK = MCLK/192

0100 - ILRCK = MCLK/256

0101 - ILRCK = MCLK/384

0110 - ILRCK = MCLK/512

0111 - ILRCK = MCLK/768

1000 - ILRCK = MCLK/1024

SAI_MCLK – Selects the master clock (MCLK) source for the serial audio input when set to master mode
(SIMS = 1, as shown in

“Serial Audio Input Data Format (0Bh)” on page 54

). When set to master, ILRCK

and ISCLK are derived from the MCLK selected in this register. Note: if either serial audio output port is
sourced directly by the serial audio input port, this bit determines the master clock source for the selected
serial output port when it is in master mode.

0 - XTI-XTO

1 - RMCK

11.8

SRC Output Serial Port Clock Control (08h)

SAO_CLK[3:0] – Valid only for the serial port sourced by the SRC. Selects the serial audio input master
clock-to-OLRCK ratio when the serial audio output port is set to master mode (SOMS = 1 as shown in

“Serial

Audio Output Data Format - SDOUT1 (0Ch)” on page 55

and

“Serial Audio Output Data Format - SDOUT2

(0Dh)” on page 56

).

0000 - OLRCK = MCLK/64

0001 - OLRCK = MCLK/96

0010 - OLRCK = MCLK/128

0011 - OLRCK = MCLK/192

0100 - OLRCK = MCLK/256

0101 - OLRCK = MCLK/384

0110 - OLRCK = MCLK/512

0111 - OLRCK = MCLK/768

1000 - OLRCK = MCLK/1024

SAO_MCLK – Selects the master clock (MCLK) source for the serial audio output, sourced by the SRC,
when set to master mode (SOMS1 or SOMS 2 = 1, as shown in

“Serial Audio Output Data Format - SDOUT1

(0Ch)” on page 55

and

“Serial Audio Output Data Format - SDOUT2 (0Dh)” on page 56

). When set to mas-

ter, OLRCK and OSCLK are derived from the MCLK selected in this register.

7

6

5

4

3

2

1

0

SAO_CLK3

SAO_CLK2

SAO_CLK1

SAO_CLK0

SAO_MCLK

SRC_MCLK1

SRC_MCLK0

SRC_DIV

0

1

0

0

0

0

0

0