[AK4372]
Addr Register Name
03H Mode Control 0
R/W
D7
0
RD
0
D6
D5
D4
BCKP
R/W
0
D3
LRP
R/W
0
D2
DIF2
R/W
0
D1
DIF1
R/W
1
D0
DIF0
R/W
0
MONO1 MONO0
R/W
0
R/W
0
Default
DIF2-0: Audio Data Interface Format Select (Table 16)
Default: “010” (Mode 2)
LRP: LRCK Polarity Select in Slave Mode
0: Normal (default)
1: Invert
BCKP: BICK Polarity Select in Slave Mode
0: Normal (default)
1: Invert
MONO1-0: Digital Mixing Select (Table 21)
Default: “00” (LR)
Addr Register Name
04H Mode Control 1
R/W
D7
ATS
R/W
0
D6
DATTC
R/W
0
D5
LMUTE
D4
SMUTE
R/W
0
D3
BST1
R/W
0
D2
BST0
R/W
0
D1
DEM1
R/W
0
D0
DEM0
R/W
1
R/W
1
Default
DEM1-0: De-emphasis Filter Frequency Select (Table 19 )
Default: “01” (OFF)
BST1-0: Low Frequency Boost Function Select (Table 20)
Default: “00” (OFF)
SMUTE: Soft Mute Control
0: Normal operation (default)
1: DAC outputs soft-muted
LMUTE: Mute control for LOUT/ROUT (Table 26)
0: Normal operation. ATTS3-0 bits control attenuation value.
1: Mute. ATTS3-0 bits are ignored. (default)
DATTC: DAC Digital Attenuator Control Mode Select
0: Independent (default)
1: Dependent
At DATTC bit = “1”, ATTL7-0 bits control both channel attenuation levels, while register values of
ATTL7-0 bits are not written to the ATTR7-0 bits. At DATTC bit = “0”, the ATTL7-0 bits control the left
channel level and the ATTR7-0 bits control the right channel level.
ATS: Digital attenuator transition time setting (Table 18)
0: 1061/fs (default)
1: 7424/fs
MS0684-E-02
2008/12
- 54 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
