AK4112B Datasheet, PDF (23/30 Pages) Asahi Kasei Microsystems – HIGH FEATURE 96kHz 24BIT DIR

ASAHI KASEI
[AK4112B]
Input/Output Control
Addr
Register Name
01H Input/Output Control
R/W
default
D7 D6 D5 D4 D3 D2 D1 D0
MPAR MSTC CS12 TXE IPS1 IPS0 OPS1 OPS0
R/W R/W R/W R/W R/W R/W R/W R/W
1
0
0
1
0
0
0
0
OPS1-0: Output Through Data Select
IPS1-0: Input Recovery Data Select
TXE: TX Output Enable
0: Disable. TX output pin is placed in a high impedance state.
1: Enable
CS12: Channel Status Select
0: Channel 1
1: Channel 2
Selects which channel status is used to derive AUDION, PEM, FS1 and FS0.
The de-emphasis filter, however, is always controlled by channel 1 in the Parallel Mode.
MSTC: Status change flag mask bit
This bit is low to mask status change from being reported by ERF.
MPAR: Parity mask bit
This bit is low to mask Parity Error, Biphase Error and Frame Length Error from being reported by
ERF.
Format & De-emphasis Control
Addr
Register Name
02H Format & De-emphasis Control
R/W
default
D7
V/TX
R/W
0
D6
DIF2
R/W
1
D5
DIF1
R/W
0
D4 D3 D2 D1 D0
DIF0 DEAU DEM1 DEM0 DFS
R/W R/W R/W R/W R/W
0
1
0
1
0
V/TX: V/TX Output Select
0: Validity Flag Output. This output is updated every fs cycle.
1: TX
DFS: 96kHz De-emphasis Control
DEM1-0: 32, 44.1, 48kHz De-emphasis Control
DEAU: De-emphasis Auto Detect Enable
0: Disable
1: Enable
DIF2-0: Audio Data Format Control
MS0078-E-02
- 23 -
2004/04