Migration Guide
Differences Between GR64 and GR4x Wireless CPU
®
Devices
Reference:
WI_DEV_GR64_DVD_001
Version:
002
Date:
April 18, 2007
Page 1: ...Migration Guide Differences Between GR64 and GR4x Wireless CPU Devices Reference WI_DEV_GR64_DVD_001 Version 002 Date April 18 2007...
Page 2: ...trademarks of Wavecom S A in France or in other countries All other company and or product names mentioned may be filed or registered trademarks of their respective owners Copyright This manual is cop...
Page 3: ...f WAVECOM Not to be distributed or divulged without prior written agreement Ce document est la propri t exclusive de WAVECOM Il ne peut tre communiqu ou divulgu des tiers sans son autorisation pr alab...
Page 4: ...GR64 VARIANTS 2 2 1 1 INTEGRATED SIM VARIANT 2 2 1 2 LEGACY VARIANT 2 2 2 NOTEWORTHY DIFFERENCES 3 2 2 1 GSM FREQUENCY COVERAGE 3 2 2 2 GPRS OPERATING CLASS 3 2 2 3 UARTS 5 2 2 4 DIGITAL IO 5 2 2 5 PC...
Page 5: ...Il ne peut tre communiqu ou divulgu des tiers sans son autorisation pr alable 3 2 8 FORMER UART2 19 3 2 9 19 FORMER PCM AUDIO DIGITAL CODEC INTERFACE 3 2 10 20 ALARM 3 2 11 20 SERVICE SIGNAL 3 3 21 G...
Page 6: ...t The GR64 shares a large degree of commonality with the GS64 with the exception that its mechanical form factor physical interface and signal characteristics are designed to be closely aligned to the...
Page 7: ...n the Wireless CPU allowing the host to provide its own I O reference Additionally the integrated SIM variant is available with or without Embedded Applications capability 2 1 2 Legacy Variant The leg...
Page 8: ...unlike its predecessors which were dual band The GR64 provides seamless GSM coverage in all regions of the world in the following GSM bands GSM 850 E GSM 900 GSM 1800 GSM 1900 2 2 2 GPRS Operating Cla...
Page 9: ...the Coding Scheme CS in use the table above shows the range of rates that are achievable within the CS classes supported by the GR64 The major impact of GPRS Class differences between the GR64 and le...
Page 10: ...an internal 2 8V regulator performing the necessary bi directional level translation Some modification to existing user interface circuitry may be necessary due to the internal impedance of the level...
Page 11: ...application PCBs wired so that the respective PCM uplink and downlink paths are connected to remain unchanged However any external circuitry connected to these pins will not function Instead the adva...
Page 12: ...ariant showing new signal allocation Migration Guide This document is the sole and exclusive property of WAVECOM Not to be distributed or divulged without prior written agreement Ce document est la pr...
Page 13: ...64 legacy variant without risking damage to the host circuitry or the Wireless CPU In the legacy GR64 variant the links between pins 49 and 50 and their respective onboard circuits are disconnected by...
Page 14: ...vailable which can be used to create a DAC like function on the host application 2 2 8 ADC Interface The A to D converter in the GR64 has a higher resolution 10 bit compared with its predecessor devic...
Page 15: ...ly therefore the GR64 is a true drop in replacement for the GM GR4x products Comparative assemblies are shown in a subsequent section of this document 2 3 General Observations The fundamental differen...
Page 16: ...the basic profile of the products the GR64 s variant configurations and inspect the mechanical mounting arrangement to confirm drop in compatibility 3 1 GR64 Signal Interface Pin Name Direction Functi...
Page 17: ...gnal 2 8V logic 31 BUZZER Output Buzzer Output DSR1 Output Data Set Ready UART1 32 GPIO7 In Out General purpose IO LED Output LED control signal 33 GPIO6 In Out General purpose IO 34 VREF Output Core...
Page 18: ...Direction Function 49 Reserved 50 ALARM Output RTC alarm 51 SSPFS In Out Serial PCM frame synchronization 52 SSPCLK In Out Serial PCM clock 53 MICIP Input Microphone input positive 54 MICIN Input Mic...
Page 19: ...igned to accommodate existing applications but in doing so sacrifices some its predecessors capability because of the nature of the newer product platform ASICs and software The following table identi...
Page 20: ...N OFF Similar in behaviour Similar in behaviour 15 SIMVCC 1 8V 3 0V only 1 8V 3 0V only 16 SIMDET No change 17 SIMRST No change Internally Externally supported SIMs 18 SIMDAT No change 19 SIMCLK No ch...
Page 21: ...rfaces Logic levels are application specific 40 GPIO12 41 DTM1 42 DFM1 43 DTM3 44 DFM3 45 Reserved Reserved replaces UART2 in legacy product Not available in this variant 46 Reserved 47 SSPDTM New imp...
Page 22: ...became obsolete some years ago Change Impact This change will not impact existing integrators 3 2 4 D to A Converter Pin GR64 GR4x Functional Difference 20 DAC DAC Software vs Hardware implementation...
Page 23: ...agreement Ce document est la propri t exclusive de WAVECOM Il ne peut tre communiqu ou divulgu des tiers sans son autorisation pr alable 27 ADIN2 ADC2 Input resolution range 28 ADIN3 ADC3 The GR64 ha...
Page 24: ...ee UARTs in the GR4x series has been replaced by a reserved interface in the GR64 The absence of a third hardware UART encouraged this change Change Impact For users of the third UART in GR4x products...
Page 25: ...nal role of the Service function in GR4x generation devices was that of a flashing programming accelerator where voltages as great as 12V were applied to the interface The memory technology used in GR...
Page 26: ...gital audio interface in the GR64 is pin compatible with the predecessor products for a standard 4 wire synchronous serial interface PCM data from Wireless CPU to host PCM data from host to Wireless C...
Page 27: ...ailable I O pins Support services for this are available upon request Details of the multiplexed pin functions can be found in the GR64 Integrators Manual available upon request from the Wavecom M2M C...
Page 28: ...only used AT Commands and is not a complete list For an exhaustive list of all AT Commands available for the GR64 and their details please refer to the latest AT Command Manual available for download...
Page 29: ...Status Same as GR47 GR48 command IP Activate cid added as response to AT E2IPA Value range of cid changed from 0 10 AT E2IPA to 0 19 for a reference to a PDP context identifier previously defined wit...
Page 30: ...mmand Ring indicator for SMS Same as GR47 GR48 command AT E2SMSRI AT CMGF Message Format Same as GR47 GR48 command AT CMGS Send Message Same as GR47 GR48 command AT CMGD Delete Message Same as GR47 GR...
Page 31: ...de of the PCB assembly allowing for two variants one with nothing on the reverse side other than the RF connector another with an integrated SIM holder GR4x GR64 Integrated SIM variant GR4x GR64 Integ...
Page 32: ...Take care in handling the GR64 Wireless CPU due to the presence of fragile components in the RF Connector side of the assembly as highlighted in the figure below Be sure that these components make no...
Page 33: ...u divulgu des tiers sans son autorisation pr alable WAVECOM S A 3 esplanade du Foncet 92442 Issy les Moulineaux Cedex France Tel 33 0 1 46 29 08 00 Fax 33 0 1 46 29 08 08 Wavecom Inc 430 Davis Dr Suit...
