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부품번호 CMX7241 기능
기능 PMR Common Platform Processor
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CMX7241 데이터시트, 핀배열, 회로
CML Microcircuits
COMMUNICATION SEMICONDUCTORS
CMX7241/CMX7341
PMR Common Platform
Processor
D7241_7341_FI-1.x/4 February 2015
DATASHEET
Advance Information
7241FI-1/7341FI-1.x: dPMRTM and Analogue PMR Processor with Rx I/Q Support
Features
Auto detect of Digital and Analogue Receive
o Digital PMR Functions:
dPMRTM (ETSI TS 102 658) Compliant
Air Interface Physical Layer (Layer 1)
Air Interface Data Link Layer (Layer 2)
Mode 1: peer-to-peer mode
Mode 2: peer-to-peer mode with repeater
operation
Mode 3: trunked mode support
Status, Type 1, Type 2 and Packet Data
o Tx Sequencer
o Analogue PMR EN 300 086 / TIA 603D
Voice processing
De-emphasis / Pre-emphasis
Tx Limiter and splatter filter
Voice Scrambler
Voice Compander
CTCSS and DCS generation and detection
Support for external CTCSS and DCS
Selcall generation and detection
DTMF generation and detection
1200/2400 bps FFSK modem (MPT1327
compatible)
Additional Features
2 Auxiliary ADCs (4 Multiplexed Inputs)
4 Auxiliary DACs
2 Auxiliary System Clock Outputs
Tx Outputs for Two-point or I/Q Modulation
Rx Inputs for Limiter/discriminator or CMX994
Direct Conversion (I/Q) Receiver
C-BUS serial interface to CMX994 transceiver
o Vocoder Management and Control (CMX6x8
RALCWI Vocoder or CMX7262 TWELP Vocoder)
o Voice Codec supports external vocoders
(SPI/PCM/I2S compatible - e.g. AMBE+2)
o C-BUS Serial Interface to Host micro
o Flexible Powersave Modes
o Low-power (3.3V) Operation
o Dedicated hardware reset pin
o Single-ended inputs (CMX7241)
o Differential inputs (CMX7341)
o Available in LQFP or VQFN Packages (CMX7341
VQFN only)
Applications
Multi-mode PMR radio
FDMA digital PMR
Analogue PMR
RF Transmit
VCO Modulator
RF Receive
Discriminator
or
Direct Conversion
Receiver CMX994
Rx and Tx Enable
System clocks
GPIO
Reference clock
Tx PA ramp
DAC outputs
ADC inputs
3.0V to 3.6V
CMX7241/CMX7341
PMR Common
Platform Processor
Vocoder
CMX6x8 or
CMX7262
or
Third-Party Vocoder
C-BUS
Host µC
Datasheet
User
Manual
2015 CML Microsystems Plc




CMX7241 pdf, 반도체, 판매, 대치품
PMR Common Platform Processor
CMX7241/CMX7341
6.2 Host Interface ............................................................................................................. 36
6.2.1 C-BUS Operation ................................................................................................. 36
6.3 Function ImageLoading ......................................................................................... 39
6.3.1 FI Loading from Host Controller........................................................................... 39
6.3.2 FI Loading from Host with CMX7262 ................................................................... 42
6.4 Direct Vocoder Control Interface ................................................................................ 44
6.5 External Codec Support ............................................................................................. 46
6.5.1 DVSI Vocoder Interface ....................................................................................... 46
6.5.2 Support for I2S Mode............................................................................................ 46
6.6 Device Control ............................................................................................................ 46
6.6.1 General Notes ...................................................................................................... 47
6.6.2 Interrupt Operation ............................................................................................... 47
6.6.3 Signal Routing...................................................................................................... 47
6.6.4 Mode Control........................................................................................................ 48
6.6.5 Tx Mode dPMR .................................................................................................... 49
6.6.6 Tx Mode PRBS .................................................................................................... 49
6.6.7 Tx Mode Preamble............................................................................................... 49
6.6.8 Tx Mode Mod Set-up ........................................................................................... 49
6.6.9 Tx Mode Test ....................................................................................................... 50
6.6.10 Tx Sequencer....................................................................................................... 50
6.6.11 Rx Mode dPMR.................................................................................................... 51
6.6.12 Rx Mode Raw....................................................................................................... 51
6.6.13 Rx Mode Eye........................................................................................................ 51
6.6.14 Rx Pass-through Mode ........................................................................................ 51
6.6.15 Rx Mode with CMX994 AGC (I/Q Mode only) ..................................................... 52
6.6.16 Rx Mode with CMX994 I/Q Cal (l/Q Mode only) .................................................. 52
6.6.17 Data Transfer ....................................................................................................... 52
6.6.18 Vocoder/CMX994 Pass-through .......................................................................... 53
6.7 dPMR Formatted Operation ....................................................................................... 54
6.7.1 Colour Codes ....................................................................................................... 54
6.7.2 Addressing ........................................................................................................... 54
6.7.3 Data Formats ....................................................................................................... 54
6.7.4 Tx Mode (dPMR formatted) ................................................................................. 59
6.7.5 Rx Mode (dPMR formatted) ................................................................................. 61
6.7.6 Slow Data............................................................................................................. 63
6.11 DTMF Signalling ......................................................................................................... 73
6.11.1 Reception and decoding of DTMF ....................................................................... 73
6.11.2 Transmission of DTMF......................................................................................... 73
6.12 Squelch Operation...................................................................................................... 74
6.13 GPIO Pin Operation.................................................................................................... 75
6.14 Auxiliary ADC Operation............................................................................................. 75
6.15 Auxiliary DAC/RAMDAC Operation ............................................................................ 76
6.16 Digital System Clock Generators ............................................................................... 77
6.16.1 Main Clock Operation .......................................................................................... 77
2015 CML Microsystems Plc
Page 4
D/7241_7341_FI1.x/4

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CMX7241 전자부품, 판매, 대치품
PMR Common Platform Processor
CMX7241/CMX7341
History
Version Changes
Date
4 Changes to Program Block 3 (ordering) for compatibility with February 2015
7241/7341FI-2 not backwards compatible. Defined timers for
GPIO A/B Tx Sequencer control.
Changes to Program Block 6 (GPIO A/B Tx Sequencer control
enable)
Added description for No Tone bit in DTMF generation and $B6
definition
Default Audio Tone Tx level updated
Corrected GPIOA/B allocation in SPI mode (B is SCLK)
3 Updated to reflect changes to improve commonality with 7241/7341FI-2: December 2014
Xtal frequency set to 19.2MHz, new settings for P3.13-21
Moved 4FSK Modem Configuration register from $C7 to $A1 (and
updated references throughout)
Moved Aux Data 2 register from $A3 to $A2
Moved SPI control bits (b1:0) from $B1 to new register in $A0
Added SPI mux control and GPIO A/B controls to P6.0
Updated programming block write mechanism and CMX994
pass-through mode.
Moved GPIO write function from $A7 to $A8 under new steering
nibble option (1)
Program blocks 0 and 3 rearranged
Some IQ related functions moved from P2.0 to P3.0
Serial Memory FI load section removed
Legacy FI load section removed
FI load section updated to support FIFO / streaming mode
FFSK Modem Format option added to Analogue Control ($C3)
2 Added Analogue PMR Status register ($9B)
Updated Mode Control Readback description ($9A)
Tx I/Q control moved to P1.6 from $C7
1 First release, Advance Information
September 2014
August 2014
This is Advance Information; changes and additions may be made to this specification. Parameters
marked TBD or left blank will be included in later issues. Items that are highlighted or greyed out should
be ignored. These will be clarified in later issues of this document.
Information in this datasheet should not be relied upon for final product design.
2015 CML Microsystems Plc
Page 7
D/7241_7341_FI1.x/4

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CMX7241

PMR Common Platform Processor

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