
ASAHI KASEI
[AK4588]
MS0287-E-01
2004/03
- 39 -
Register Map
Addr Register Name
00H
Control 1
01H
Control 2
02H
LOUT1 Volume Control
03H
ROUT1 Volume Control
04H
LOUT2 Volume Control
05H
ROUT2 Volume Control
06H
LOUT3 Volume Control
07H
ROUT3 Volume Control
08H
De-emphasis
09H
ATT speed
& Power Down Control
0AH Zero detect
0BH LOUT4 Volume Control
0CH ROUT4 Volume Control
Note: For addresses from 0DH to 1FH, data is not written.
When PDN pin goes to “L”, the registers are initialized to their default values.
When RSTN1 bit goes to “0”, the internal timing is reset and DZF1-2 pins go to “H”, but registers are not
initialized to their default values.
Register Definitions
Addr Register Name
D7
D6
00H
Control 1
0
0
Default
0
0
SMUTE: Soft Mute Enable
0: Normal operation
1: All DAC outputs soft-muted
DIF1-0: Audio Data Interface Modes (see Table 10)
Initial: “10”, mode 2
TDM1-0: TDM Format Select (see Table 11,12)
Mode
TDM1 TDM0
SDTI
0
0
0
1-4
1
0
1
1
2
1
1
1-2
D7
0
CKS1
ATT7
ATT7
ATT7
ATT7
ATT7
ATT7
DEMD1 DEMD0
D6
0
DFS1
ATT6
ATT6
ATT6
ATT6
ATT6
ATT6
D5
D4
D3
DIF1
SDOS
ATT3
ATT3
ATT3
ATT3
ATT3
ATT3
DEMB1
D2
DIF0
DFS0
ATT2
ATT2
ATT2
ATT2
ATT2
ATT2
DEMB0
D1
0
ACKS
ATT1
ATT1
ATT1
ATT1
ATT1
ATT1
DEMC1
D0
TDM1
LOOP1
ATT5
ATT5
ATT5
ATT5
ATT5
ATT5
DEMA1
TDM0
LOOP0
ATT4
ATT4
ATT4
ATT4
ATT4
ATT4
DEMA0
SMUTE
CKS0
ATT0
ATT0
ATT0
ATT0
ATT0
ATT0
DEMC0
0
PD4
ATS1
ATS0
PD3
PD2
PD1
RSTN1
OVFE
ATT7
ATT7
DZFM3
ATT6
ATT6
DZFM2
ATT5
ATT5
DZFM1
ATT4
ATT4
DZFM0
ATT3
ATT3
PWVRN
ATT2
ATT2
PWADN
ATT1
ATT1
PWDAN
ATT0
ATT0
D5
D4
D3
DIF1
1
D2
DIF0
0
D1
0
0
D0
TDM1
0
TDM0
0
SMUTE
0
Sampling Speed
Normal, Double, Four Times Speed
Normal Speed
Double Speed