Cirrus Logic CS43L22 - Manual (Page 47)

DS792F2 47
CS43L22
Confidential Draft
3/4/10
7.14 PCMx Volume: PCMA (Address 1Ah) & PCMB (Address 1Bh)
7.14.1 PCM Channel x Mute
Configures a digital mute on the PCM data from the serial data input (SDIN) to the DSP.
7.14.2 PCM Channel x Volume
Sets the volume/gain of the PCM data from the serial data input (SDIN) to the DSP.
7.15 Beep Frequency & On Time (Address 1Ch)
7.15.1 Beep Frequency
Sets the frequency of the beep signal.
7 6 5 4 3 2 1 0
PCMxMUTE PCMxVOL6 PCMxVOL5 PCMxVOL4 PCMxVOL3 PCMxVOL2 PCMxVOL1 PCMxVOL0
PCMxMUTE PCM Mute
0 Disabled
1 Enabled
PCMxVOL[6:0] Volume
001 1000 +12.0 dB
... ...
000 0001 +0.5 dB
000 0000 0 dB
111 1111 -0.5 dB
... ...
001 1001 -51.5 dB
Step Size: 0.5 dB
7 6 5 4 3 2 1 0
FREQ3 FREQ2 FREQ1 FREQ0 ONTIME3 ONTIME2 ONTIME1 ONTIME0
FREQ[3:0] Frequency (Fs = 12, 24, 48 or 96 kHz) Pitch
0000 260.87 Hz C4
0001 521.74 Hz C5
0010 585.37 Hz D5
0011 666.67 Hz E5
0100 705.88 Hz F5
0101 774.19 Hz G5
0110 888.89 Hz A5
0111 1000.00 Hz B5
1000 1043.48 Hz C6
1001 1200.00 Hz D6
1010 1333.33 Hz E6
1011 1411.76 Hz F6
1100 1600.00 Hz G6
1101 1714.29 Hz A6
1110 2000.00 Hz B6
1111 2181.82 Hz C7
Application: “Beep Generator” on page 22