PMR Signalling Processor
CMX881
Block 1 –Selcall Setup:
Bit:
15
1
14
1
13
0
12
1
11
10
9
8
7
6
5
4
3
2
1
0
P1.0
Audio band Tx level
Emph
Selcall detect
bandwidth
P1.1
0
1
0
1
0
Audio band detect threshold
P1.2
P1.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Programmable Selcall Repeat Tone
Programmable Selcall Tone 0
Programmable Selcall Tone 1
Programmable Selcall Tone 2
Programmable Selcall Tone 3
Programmable Selcall Tone 4
Programmable Selcall Tone 5
Programmable Selcall Tone 6
Programmable Selcall Tone 7
Programmable Selcall Tone 8
Programmable Selcall Tone 9
Programmable Selcall Tone 10
Programmable Selcall Tone 11
Programmable Selcall Tone 12
Programmable Selcall Tone 13
Programmable Selcall Tone 14
Programmable Selcall Tone 15
P1.4
P1.5
P1.6
P1.7
P1.8
P1.9
P1.10
P1.11
P1.12
P1.13
P1.14
P1.15
P1.16
P1.17
P1.18
Block 2 – CTCSS and DCS Setup:
Bit:
15
1
14
1
13
1
12
0
11
10
0
9
8
7
6
5
4
3
2
1
0
P2.0
CTCSS and DCS Tx level
CTCSS detect
bandwidth
DCS
24
P2.1
0
1
1
0
CTCSS and DCS detect threshold
P2.2
P2.3
P2.4
0
0
0
1
1
1
1
1
1
0
0
0
DCS Code bits 11 – 0
DCS Code bits 23/22 – 12
Sub-audio drop out
time
0
Block 3 – Reserved. Do not use.
2004 CML Microsystems Plc
42
D/881/7
CMLMICRO [ CML MICROCIRCUITS ]
