[AK4492]
■ Register Definitions
Addr Register Name
00H Control 1
R/W
D7
ACKS
R/W
0
D6
EXDF
R/W
0
D5
ECS
R/W
0
D4
AFSD
R/W
0
D3
DIF2
R/W
1
D2
DIF1
R/W
1
D1
DIF0
R/W
0
D0
RSTN
R/W
0
Default
RSTN: Internal Timing Reset
0: Reset. All registers are not initialized. (default)
1: Normal Operation
DIF[2:0]: Audio Interface Format (Table 24)
Initial value is “110” (Mode6: 32bit MSB justified).
AFSD: Sampling Frequency Auto Detect Mode Enable (PCM & EXDF mode only). (Table 5)
0: Disable: Manual or Auto Setting Mode (default)
1: Enable: Auto Detect Mode
When AFSD bit = “1”, DFS[2:0] bits are ignored.
ECS: EXDF mode clock setting (Table 23)
0: WCK = 768kHz mode(default)
1: WCK = 384kHz mode
EXDF: External Digital Filter I/F Mode (Register Control mode only)
0: Disable: Internal Digital Filter mode (default)
1: Enable: External Digital Filter mode
ACKS: Master Clock Frequency Auto Setting Mode Enable (PCM & EXDF mode only) (Table 14, Table 5)
0: Disable: Manual Setting Mode (default)
1: Enable: Auto Setting Mode
016011073-E-00
2016/12
- 84 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
