When the part is configured as an I

If ADDR is low then the address portion of the I

address input should be set to write to 1110000. The LM4931 uses the following 11 registers to store configuration information:

SYSTEM CONTROL TABLE

Address

Register Name

Description

00000000

BASIC_CONFIG

Controls the output mode configuration

00000001

VOICE_CONFIG

Controls the settings for the voice codec

00000010

MIC_GAIN

Controls the gain and muting of the microphone pre-amplifier

00000011

HP_GAIN

Controls the gain and muting of the headphone amplifier

00000100

LS_GAIN

Controls the gain and muting of the loudspeaker amplifier

00000101

PLL_M

Sets the PLL input divider

00000110

PLL_N

Sets the PLL feedback divider

00000111

PLL_P

Sets the PLL output divider

00001000

CLK_MUX

Configures the clock divider

00001001

INTERFACES

Controls the format of the PCM, I

00001010

PMC_CONFIG

Controls the power management functions

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