ASAHI KASEI
[AK4101A]
n Register Definitions
Addr
Register Name
D7
CRCE
R/W
1
D6
DIF2
R/W
0
D5
DIF1
R/W
0
D4
DIF0
R/W
0
D3
CKS1
R/W
0
D2
CKS0
R/W
0
D1
MUTEN
R/W
D0
RSTN
R/W
1
00H Clock/Format Control
R/W
Default
1
RSTN: Timing Reset.
0: Resets the internal frame and bit counters. Control registers are not initialized.
TXP pin is “H” and TXN pin is “L”. In normal mode, BLS pin is “H”.
1: Normal operation. (Default)
MUTEN: Power Down and Mute for Asynchronous Mode.
0: Power Down Command. Control registers are not initialized.
TXP and TXN pins are “L”. In normal mode, BLS pin is “H”.
1: Normal operation. (Default)
CKS1-0: Master Clock Frequency Select. (See Table 1.)
Default: “00” (Mode 0: MCLK=128fs)
CKS1-0 bits are logically ORed with CKS1-0 pins.
DIF2-0: Audio Data Format. (See Table 3.)
Default: “000” (Mode 0: 16bit right justified)
DIF2-0 bits are logically ORed with DIF2-0 pins.
CRCE: CRCC Enable at professional mode.
0: CRCC is not generated.
1: CRCC is generated in professional mode. In consumer mode, CRCC is not generated. (Default)
Addr
Register Name
D7
V4
R/W
0
D6
V3
R/W
0
D5
V2
R/W
0
D4
V1
R/W
0
D3
FS3
R/W
0
D2
FS2
R/W
0
D1
FS1
R/W
0
D0
FS0
R/W
0
01H Validity/fs Control
R/W
Default
FS3-0: Sampling Frequency Select. (See Table 4 and Table 5.)
Default: “0000” (“44.1kHz” in consumer mode; “Not defined” in professional mode. )
V1-4: Validity Flag for each channel.
0: Valid (Default)
1: Invalid
V12 pin
V1 bit
V2 bit
V bit on TX1
V bit on TX2
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
0
1
1
1
1
1
1
0
1
0
1
1
1
1
1
Table 8. V bit setting at asynchronous mode
MS0250-E-00
2003/07
- 23 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
