Cirrus Logic CS43L21 - Manual (Page 42)

42 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 15 on page 31
001 I²S, up to 24-bit data 14 on page 30
010 Right-Justified, 24-bit data 16 on page 3116 on page 31
011 Right-Justified, 20-bit data 16 on page 3116 on page 31
100 Right-Justified, 18-bit data 16 on page 3116 on page 31
101 Right-Justified, 16-bit data 16 on page 3116 on page 31
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