MT9160 Datasheet, PDF (13/28 Pages) Mitel Networks Corporation – ISO2-CMOS 5 Volt Multi-Featured Codec (MFC)

Preliminary Information
MT9160
Path Control
ADDRESS = 02h WRITE/READ VERIFY
-
-
-
-
-
-
- _DrGain
7
6
5
4
3
2
1
0
Power Reset Value
XX00 0000
DrGain
When high, the receiver driver gain is set to -6 dB, with sidetone.
When low, the receiver driver gain is set to 0 dB, with no sidetone.
Control Register 1
PDFDI PDDR Rst
7
6
5
ADDRESS = 03h WRITE/READ VERIFY
_ _{TxMute RxMute TxBsel RxBsel}
Power Reset Value
0000 0000
4
3
2
1
0
PDFDI
PDDR
Rst
TxMute
RxMute
TxBsel
RxBsel
When high, the FDI PLA and the Filter/Codec are powered down. When low, the FDI is active (default).
When high, the ear driver and Filter/Codec are powered down. In addition, in ST-BUS mode, the selected output
channel is tri-stated. In SSI mode the PCM output code will be -zero code during the valid strobe period. The output will
be tri-stated outside of the valid strobe and for the whole frame if no strobe is supplied. When low, the driver and Filter/
Codec are active if PDFDI is low (default).
When high, a software reset occurs performing the same function as the hardware reset (PWRST) except that the
microport is not affected. A software reset can be removed only by writing this bit low or by a PWRST. When low, the
reset condition is removed.
When high the transmit PCM stream is interrupted and replaced with quiet code; thus forcing the output code into a
mute state (only the output code is muted, the transmit microphone and transmit Filter/Codec are still functional). When
low the full transmit path functions normally (default).
When high the received PCM stream is interrupted and replaced with quiet code; thus forcing the receive path into a
mute state. When low the full receive path functions normally (default).
When high, the transmit B2 channel is functional in ST-BUS mode. When low, the transmit B1 channel is functional in
ST-BUS mode. Not used in SSI mode.
When high, the receive B2 channel is functional in ST-BUS mode. When low, the receive B1 channel is functional in
ST-BUS mode. Not used in SSI mode.
Note: Bits marked "-" are reserved bits and should be written with logic "0"
7-89