AK4497 Datasheet, PDF (81/98 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

[AK4497]
■ Register Definitions
Addr Register Name
00H Control 1
R/W
Default
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
RSTN: Internal Timing Reset
0: Reset. All registers are not initialized. (default)
1: Normal Operation
Writing “0” to this bit resets the internal timing circuit but register values are not initialized.
DIF[2:0]: Audio Data Interface Modes (Table 23)
Initial value is “110” (Mode 6: 32-bit 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 22)
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 13, Table 5)
0: Disable: Manual Setting Mode (default)
1: Enable: Auto Setting Mode
Rev. 0.1
- 81 -
2015/11