CMX881 查看數據表（PDF） - CML Microsystems Plc
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CMX881 Datasheet PDF : 59 Pages
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PMR Signalling Processor
Block 1 –Selcall Setup:
Bit: 15 14 13 12
P1.0 1 1 0 1
P1.1 0 1 0 1
P1.2 0 1 0 1
P1.3 0 1 0 1
P1.4 0 1 0 1
P1.5 0 1 0 1
P1.6 0 1 0 1
P1.7 0 1 0 1
P1.8 0 1 0 1
P1.9 0 1 0 1
P1.10 0 1 0 1
P1.11 0 1 0 1
P1.12 0 1 0 1
P1.13 0 1 0 1
P1.14 0 1 0 1
P1.15 0 1 0 1
P1.16 0 1 0 1
P1.17 0 1 0 1
P1.18 0 1 0 1
11 10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CMX881
9876543210
Audio band Tx level
Emph
Audio band detect threshold
Selcall detect
bandwidth
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
Block 2 – CTCSS and DCS Setup:
Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
P2.0 1 1 1 0
CTCSS and DCS Tx level
P2.1 0
1
1
0
DCS
24
0
CTCSS and DCS detect threshold
CTCSS detect
bandwidth
P2.2 0 1 1 0
DCS Code bits 11 – 0
P2.3 0 1 1 0
DCS Code bits 23/22 – 12
P2.4 0 1 1 0
Sub-audio drop out
0
time
Block 3 – Reserved. Do not use.
2004 CML Microsystems Plc
42
D/881/7
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