Cirrus Logic CS42L73 - Manual (Page 117)

DS882F1 117
CS42L73
6.45 Mixer Control (Address 34h)
6.45.1 VSP Mixer Output Stereo
Selects which of the following mixer outputs is sent to the VSP output:
• The stereo VSP mixer outputs
• The output from the mixer that combines the stereo VSP mixer’s outputs is sent to the left
and right channels of the VSP output interface.
6.45.2 XSP Mixer Output Stereo
Selects which mixer output is sent to the XSP output:
• The stereo XSP mixer outputs
• The output from the mixer that combines the stereo XSP mixer’s outputs is sent to the left
and right channels of the XSP output interface.
6.45.3 Mixer Soft-Ramp Enable
Selects whether the digital mixer’s mixer inputs will change volume all at once or use an incremental vol-
ume ramp (configured by
“Mixer Soft-Ramp Step Size/Period” on page 117 ) to change from the current
level to the new level, via “Stereo Mixer Input Attenuation (Addresses 35h through 54h)” on page 118 .
6.45.4 Mixer Soft-Ramp Step Size/Period
Selects the mixer attenuation change soft-ramp step size and step period.
7 6 5 4 3 2 1 0
Reserved Reserved VSPO_STEREO XSPO_STEREO MXR_SFTR_EN MXR_STEP2 MXR_STEP1 MXR_STEP0
VSPO_STEREO Mixer(s) Selected
0 Mono
1 Stereo
Application: Refer to section “Mono and Stereo Paths” on page 63 .
XSPO_STEREO Mixer(s) Selected
0 Mono
1 Stereo
Application: Refer to section “Mono and Stereo Paths” on page 63 .
MXR_SFTR_EN Mixer Volume Changes
0 Abruptly take effect without a soft-ramp
1 Occur with a soft-ramp
Application: Refer to section “Mixer Input Attenuation Adjustment” on page 63 .
MXR_STEP[2:0] Step Size Step Period (# of Fs periods between each step)
000 1/8 dB 1
001 1/4 dB 1
010 1/2 dB 1
011 1 dB 1
100 1/8 dB 4
101 1/8 dB 2
110 Reserved
111 Reserved
Application: Refer to section “Mixer Input Attenuation Adjustment” on page 63 .