User's Manual

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AsiatelcoTechnologiesCo.Proprietary/Confidential
2 Hardware Design
2.1 Basic Hardware
Items Requirement
BasebandChipset VIACBP8.2C
RFTransceiver FCI7790
Memory SerialFlash64Mb
PSRAM128Mb
AirInterface CDMA20001x,GPS
Frequency CDMA20001x:800MHz,1900MHz
Antenna InternalAntenna(800M&1900M)
GPSAntenna Dedicatehighperformanceceramicantenna
UIMrequirement NoUIMmode,UIMcardconnectoroptional
BatteryMonitor
internalanaloginputscaled
Buildinbatterymanager
Supported
DedicateTimers
No
Watchdog
Supported(DedicateWatchdogisOptional)
MotionDetect
OptionalGPS/Sensor
LED
2LEDSupported
2LEDs(oneisREDoneisGreen)
PowerConsumption
< 5Watts
The ES710 provides support for specialized hardware features through extended AT
commands.Thefeaturessupportedincludethefollowing.
GPS
ThemajorfunctionalityoftheGPSmoduleistocomputethecorrelationresultsbetweenthe
incomingsignalandtheselectedPRNcodebasedoncertainCarrierDopplerFrequency,Code
Doppler Frequency, code phase, carrier phase, and the particular satellite the module is
trackingoracquiring.
GPIO
Two GPIO pins, GP1 and GP2, are presented to the external environment on the main
connector. They are general purpose bidirectional lines capable of providing system
interruptstogenerateareportordrivelogiclevelstoexternaldevices.These linesare2.8V
logiclevelandare15Vtolerant.Thesepinsdefault
toinput.GP1ispulleddownrepresenting
0 when disconnected; GP2 is pulled up representing logical 1 when disconnected. They
shouldbeassertedtoaknownvalueifused.GP1isintendedtouseforIgnitionSensing.
LED’s
Two LED status indicators are provided to verify correct installation and operation. The
statusLEDsarecolorcodedanddirectlyconveythestatusoftheCDMAandGPSsubsystems
as described inthe table below.Their validoperation also indicates operational status and
power.