MT9196
Data Sheet
Transmit Path Control Register
ADDRESS = 12h WRITE/READ VERIFY
Power Reset Value
XXXX 0000
b0
-
-
-
-
b3
3
b2
2
b1
1
7
6
5
4
0
Control bits b0 to b3 are used to configure the transmit path and select the transmit source. Note that for SSI mode all selections where
b3 = 1 are not used and are interpreted as b0 - b3 = 0 (i.e., transmit path off).
Source Programming
Destination
b3
b2
b1
b0
B1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
B1 & B2 Off
Handset mic (M + /M -)
Handsfree mic (MIC +)
AUXin
Tx tones
Reserved
Reserved
Reserved
B2
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Reserved
Handset mic (M + /M -)
Handsfree ic (MIC +)
AUXin
Tx Tones
Reserved
Reserved
Reserved
Receive Path Control Register
ADDRESS = 13h WRITE/READ VERIFY
Power Reset Value
0000 0000
b7
7
b6
6
b5
5
b4
4
b3
3
b2
2
b1
1
b0
0
Control bits b0 to b7 are used to assign a signal source individually to each receive path output. In addition transmit to receive voice
sidetone path control is included.
Destination
Source Programming
Handset Speaker
b1
b0
0
0
1
1
0
1
0
1
Off
Rx Filter
AUXin
Reserved
Handsfree Speaker
b3
b2
0
0
1
1
0
1
0
1
Off
Rx Filter
AUXin
Ringer
Aux out
b6
b5
b4
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Off
Rx Filter
Reserved
AUXin
Handset mic (M+ /M -)
Handsfree mic (MIC +)
Reserved
Reserved
Voice Sidetone
b7
0
1
Voice sidetone path disabled
Voice sidetone path enabled
Note: Bits marked "-" are reserved bits and should be written with logic "0".
24
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
