ASAHI KASEI
[AK4112A]
Input/Output Control
Addr
01H
Register Name
D7
D6
D5
D4
TXE
R/W
1
D3
IPS1
R/W
0
D2
IPS0
R/W
0
D1
D0
Input/Output Control
MPAR MSTC CS12
OPS1 OPS0
R/W
R/W
1
R/W
0
R/W
0
R/W
0
R/W
0
default
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
D7
D6
D5
D4
D3
D2
D1
D0
02H Format & De-emphasis Control V/TX
DIF2
DIF1
DIF0 DEAU DEM1 DEM0
DFS
R/W
R/W
0
R/W
1
R/W
0
R/W
0
R/W
1
R/W
0
R/W
1
R/W
0
default
V/TX:
DFS:
V/TX Output Select
0: Validity Flag Output. This output is updated every fs cycle.
1: TX
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
MS0020-E-00
2000/3
- 24 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
