CS42L51 datasheet(49/83 Pages) CIRRUS

49 / 83 page

DS679A2

CS42L51

Tri-State Serial Port Interface (3ST_SP)

Default: 0

0 - Disable

1 - Enable

Function:

When enabled, and the device is configured as a master, then all Serial Port interface signals will be placed

in a high-impedance output state. If the serial port interface is configured as a slave, only the SDOUT pin

will be placed in a high-impedance state. The other signals will remain as inputs.

Power Down MIC X (PDN_MICX)

Default: 1

0 - Disable

1 - Enable

Function:

When enabled, the microphone pre-amplifier for channel x will be in a power down state.

Power Down MIC BIAS (PDN_MICBIAS)

Default: 1

0 - Disable

1 - Enable

Function:

When enabled, the microphone bias circuit will be in a power down state.

MCLK Divide By 2 (MCLKDIV2)

Default: 0

0 - Disabled

1 - Divide by 2

Function:

Divides the input MCLK by 2 prior to all internal circuitry. This bit is ignored when the AUTO bit is disabled

in slave mode.

6.4

Interface Control (Address 04h)

SDOUT to SDIN Loopback (SDOUT->SDIN)

Default: 0

0 - Disabled; SDOUT internally disconnected from SDIN

1 - Enabled; SDOUT internally connected to SDIN

Function:

Internally loops the signal on the SDOUT pin to SDIN.

Master/Slave Mode (M/S)

Default: 0

0 - Slave

1 - Master

Function:

Selects either master or slave operation for the serial port.

432

SDOUT->SDIN

M/S

DAC_DIF2

DAC_DIF1

DAC_DIF0

ADC_I²S/LJ

DIGMIX

MICMIX

CS42L51 Datasheet(PDF) 49 Page - Cirrus Logic

CS42L51 Datasheet(HTML) 49 Page - Cirrus Logic

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