Cirrus Logic CDB42438 - Manual (Page 18)

CDB42438
18 DS646DB2
Function:
This MUX selects the data lines from the ADC’s and the external ADC. The last 4 selections are de-
multiplexed from the TDM stream of SDOUT (see Figure 5 on page 12).
5.4.2 OMCK/LRCK RATIO SELECT (OMCK 128/256 FS)
Default = 0
0 - 256 Fs
1 - 128 Fs
Function:
Selects the MCLK/LRCK ratio of the CS8406 transmitter.
5.4.3 LEFT-JUSTIFIED OR I ² S INTERFACE FORMAT (I ² S/LJ)
Default = 0
0 - Left Justified
1 - I
² S
Function:
Selects either I ² S or Left Justified interface format for the CS8406.
5.5 CS8416 CONTROL (ADDRESS 05H)
5.5.1 RESET (RST)
Default = 1
0 - CS8416 held in reset
1 - CS8416 taken out of reset
Function:
This bit is used to reset the CS8416 and is held low for 300
µs upon FPGA initialization. It is also
pulled low for 300
µs whenever registers 05h[3:1] change.
5.5.2 MASTER/SLAVE SELECT (M/S)
Default = 1
0 - Slave
1 - Master
Function:
Selects master/slave mode for the CS8416 and configures the internal routing buffers. Pin 6 (RST bit)
7 6 5 4 3 2 1 0
Reserved Reserved Reserved RST M/S 128/256 Fs I²S/LJ RMCK_Master