Advance Information
MT91L60/61
Path Control
ADDRESS = 02h WRITE/READ VERIFY
Power Reset Value
XX00 0000
-
-
-
-
-
-
-
DrGain
7
6
5
4
3
2
1
0
DrGain
When high, the receive path is summed with the side tone path and is attenuated by 6dB.
When low, the receive path conatins no side tone (default).
Control Register 1
ADDRESS = 03h WRITE/READ VERIFY
Power Reset Value
0000 0000
_
4
PDFDI PDDR Rst
TxMute RxMute TxBsel RxBsel
7
6
5
3
2
1
0
PDFDI
PDDR
When high, the FDI PLA and the Filter/Codec are powered down (default). When low, the FDI is active.
When high, the ear driver and Filter/Codec are powered down (default). 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.
Rst
When high, a software reset occurs performing the same function as the hardware reset (PWRST) except that the Rst
bit remains high and device remains powered up. A software reset can be removed only by writing this bit low or by
means of a hardware reset (PWRST). This bit is useful for quickly programming the Registers to the default Power
Reset Values. When this bit is low, the reset condition is removed allowing the registers to be modified
TxMute
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).
RxMute
TxBsel
RxBsel
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
Note: Bits marked "-" are reserved bits and should be written with logic "0"
15
MITEL [ MITEL NETWORKS CORPORATION ]
