CMX981 Consumer Microcircuits Limited, CMX981 Datasheet - Page 44

• Manufacturer Part Number: CMX981
• Description: Advanceddigital Radio Baseband Processor (tetra Etc.)
• Manufacturer: Consumer Microcircuits Limited

Advanced Digital Radio Baseband Processor
5.11.42 $5A
5.11.43 $5B
 2002 CML Microsystems Plc
The values in this register control the gain of the input and output amplifiers for the voice codec.
The values in this register control the amplitude of the ring tone generator and the sidetone path.
Bit 7
Bit 7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Bit
Bit
Bit 6
Bit 6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
7
7
CodecGain1
CodecGain2
Bit 5
Bit 5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Bit 4
Bit 4
6
6
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Input gain
Tone gain
Gain (dB)
Input Gain
Tone
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30
-2
-4
-6
-8
10.5
12.0
13.5
15.0
16.5
18.0
19.5
21.0
22.5
(dB)
5
5
0
1.5
3.0
4.5
6.0
7.5
9.0
0
Voice Codec Gain Register 1
Voice Codec Gain Register 2
44
4
4
Bit 3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Bit 3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
3
3
Bit 2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Bit 2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Bit 1
2
2
Sidetone gain
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Output gain
Bit 1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Bit 0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Bit 0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Gain (dB)
Sidetone
-12.5
-13.5
-14.5
-15.5
-16.5
-17.5
-18.5
-19.5
-20.5
-21.5
-22.5
-23.5
-24.5
-25.5
-26.5
-27.5
Gain (dB)
Output
-14
-16
-18
-20
-22
-24
-26
-28
-30
-10
-12
0
0
CMX981
D/981/1
-2
-4
-6
-8
0