Cirrus-logic CDB42L55 Manuel d'utilisateur télécharger pdf (Page 14)

14 DS773DB1

CDB42L55

4.4 DSP Engine Tab

The “DSP Engine” tab provides high-level control functions to modify the SDIN (PCM) data volume level,

the ADC output/SDIN mix volume level, Tone Control and Beep Generator. Status text detailing the CO-

DEC’s specific configuration is shown inside the control group of the affected control. This text will change

depending on the setting of the associated control. A description of each control group is outlined below (a

description of each register is included in the CS42L55 data sheet):

Digital Volume Control - Configures the volume/gain of the ADC mix or the PCM data from the serial data

input (SDIN) in the DSP.

Tone Control - Sets the corner frequencies and the volume/gain of the treble and bass shelving filters in the

DSP engine.

Beep Generator - Controls for setting the various beep parameters.

Update - Reads all registers in the CS42L55 and reflects the current values in the GUI.

Reset - Resets the CS42L55.

Figure 7. DSP Engine Tab

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Cirrus-logic CDB42L55 Manuel d'utilisateur Page 14