Cirrus Logic CDB42L55 - Manual (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