4 interface control (address 04h), 5 dac output control (address 08h), Headphone analog – Cirrus Logic CS43L21 User Manual
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DS723F1
CS43L21
6.4
Interface Control (Address 04h)
Master/Slave Mode (M/S)
Default: 0
0 - Slave
1 - Master
Function:
Selects either master or slave operation for the serial port.
DAC Digital Interface Format (DAC_DIF[2:0])
Default = 000
Function:
Selects the digital interface format used for the data in on SDIN. The required relationship between the
Left/Right clock, serial clock and serial data is defined by the Digital Interface Format and the options are
detailed in the section
“Digital Interface Formats” on page 30
.
6.5
DAC Output Control (Address 08h)
Headphone Analog Gain (HP_GAIN[2:0])
Default: 011
Function:
7
6
5
4
3
2
1
0
Reserved
M/S
DAC_DIF2
DAC_DIF1
DAC_DIF0
Reserved
Reserved
Reserved
DAC_DIF[2:0]
Description
Figure
000
Left-Justified, up to 24-bit data
001
I²S, up to 24-bit data
010
Right-Justified, 24-bit data
011
Right-Justified, 20-bit data
100
Right-Justified, 18-bit data
101
Right-Justified, 16-bit data
110
Reserved
-
100
Reserved
-
7
6
5
4
3
2
1
0
HP_GAIN2
HP_GAIN1
HP_GAIN0
DAC_
SNGVOL
INV_PCMB
INV_PCMA
DACB_MUTE DACA_MUTE
HP_GAIN[2:0]
Gain Setting
000
0.3959
001
0.4571
010
0.5111
011
0.6047
100
0.7099
101
0.8399
110
1.0000
111
1.1430