[AK4101A]
MS0250-E-01 2012/11
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Register Definitions
Addr Register Name D7 D6 D5 D4 D3 D2 D1 D0
00H Clock/Format Control CRCE DIF2 DIF1 DIF0 CKS1 CKS0 MUTEN RSTN
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Default 1 0 0 0 0 0 1 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 D6 D5 D4 D3 D2 D1 D0
01H Validity/fs Control V4 V3 V2 V1 FS3 FS2 FS1 FS0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Default 0 0 0 0 0 0 0 0
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 0
0 0 1 0 1
0 1 0 1 0
0 1 1 1 1
1 0 0 1 1
1 0 1 1 1
1 1 0 1 1
1 1 1 1 1
Table 8. V bit setting at asynchronous mode
