TG-ETRX35X-LRS-PM-015108 Product Manual 1.08 TelegesisTM ETRX351-LRS and ETRX357-LRS PRODUCT MANUAL N ot R ec om m en de d fo r N ew D ETRX35x-LRS ZIGBEE MODULES es ig n TelegesisTM is a trademark of Silicon Laboratories Inc. (c)2016 Silicon Labs ETRX35x-LRS Product Manual ETRX351-LRS and ETRX357-LRS Table of Contents 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 PRODUCT APPROVALS ................................................................................................... 6 es ig n 2 Hardware Description ....................................................................................................... 5 FCC Approvals ................................................................................................................. 6 IC (Industry Canada) Approvals ....................................................................................... 7 European Certification ...................................................................................................... 8 ICASA Approvals ............................................................................................................. 8 Australia and New Zealand (C-Tick) ................................................................................. 8 Brazil ................................................................................................................................ 9 Declarations of Conformity ............................................................................................... 9 IEEE 802.15.4 .................................................................................................................. 9 The ZigBee Protocol ...................................................................................................... 10 D 1.1 INTRODUCTION ................................................................................................................. 5 N ew 1 3 MODULE PINOUT ............................................................................................................ 11 4 HARDWARE DESCRIPTION ............................................................................................ 13 5.1 5.2 5.3 5.4 fo r 5 Hardware Interface......................................................................................................... 13 FIRMWARE DESCRIPTION ............................................................................................. 14 Token Settings ............................................................................................................... 15 Custom Firmware ........................................................................................................... 15 Boost Mode vs. Normal Mode ........................................................................................ 15 Software Interface .......................................................................................................... 16 m en de d 4.1 ABSOLUTE MAXIMUM RATINGS ................................................................................... 17 7 RECOMMENDED OPERATING CONDITIONS ................................................................ 17 8 DC ELECTRICAL CHARACTERISTICS ........................................................................... 18 9 DIGITAL I/O SPECIFICATIONS ....................................................................................... 19 10 A/D CONVERTER CHARACTERISTICS .......................................................................... 20 11 AC ELECTRICAL CHARACTERISTICS ........................................................................... 20 12 PHYSICAL DIMENSIONS................................................................................................. 25 SOLDERING TEMPERATURE TIME PROFILE (FOR REFLOW SOLDERING) .............. 27 ot R 13 TX Power Characteristics ............................................................................................... 22 Power Settings for Regulatory Compliance .................................................................... 23 Temperature behaviour .................................................................................................. 24 ec 11.1 11.2 11.3 om 6 14 PRODUCT LABEL DRAWING ......................................................................................... 28 15 RECOMMENDED FOOTPRINT ........................................................................................ 29 N 15.1 15.2 Recommended Placement ............................................................................................. 30 Example carrier board .................................................................................................... 32 16 RELIABILITY TESTS ........................................................................................................ 33 17 APPLICATION NOTES ..................................................................................................... 33 17.1 17.2 17.3 Safety Precautions ......................................................................................................... 33 Design Engineering Notes .............................................................................................. 33 Storage Conditions......................................................................................................... 34 (c)2016 Silicon Labs -2- ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 18.1 18.2 18.3 18.4 18.5 PACKAGING .................................................................................................................... 35 Embossed Tape ............................................................................................................. 35 Component Orientation .................................................................................................. 36 Reel Dimensions ............................................................................................................ 36 Packaging - bag ............................................................................................................. 37 Packaging - carton ........................................................................................................ 37 es ig n 18 ORDERING INFORMATION ............................................................................................. 38 20 ROHS DECLARATION ..................................................................................................... 39 21 DATA SHEET STATUS .................................................................................................... 39 22 RELATED DOCUMENTS ................................................................................................. 39 N ot R ec om m en de d fo r N ew D 19 (c)2016 Silicon Labs -3- ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS The Telegesis ETRX351-LRS and ETRX357-LRS modules are low power 2.4GHz ZigBee modules with an added frontend module (SiGe SE2432L) containing both PA and LNA for highest possible link budget. es ig n Based on the latest Ember EM351 and EM357 single chip ZigBee solution the new long range modules are footprint compatible with the ETRX351 and ETRX357, thus representing a drop-in replacement for all applications where a high link budget is required. D ot R AMR - ZigBee Smart Energy applications Wireless Alarms and Security Home/Building Automation Wireless Sensor Networks M2M Industrial Controls Lighting and ventilation control Remote monitoring Environmental monitoring and control m en de d om Suggested Applications Small form factor, SMT module 25mm x 19mm Side Castellations for easy soldering and inspection 2 antenna options: Integrated chip antenna or U.FL coaxial connector Industry's first ARM(R) Cortex-M3 based family of ZigBee modules Industry standard JTAG Programming and real time network level debugging via the Ember InSight Port 192kB (ETRX357-LRS) and 128kB (ETRX351-LRS) flash and 12kbytes of RAM Lowest Deep Sleep Current of sub 1A and multiple sleep modes Ultra Wide supply voltage range (2.1 to 3.6V) 32.768kHz watch crystal can be added externally Module ships with standard Telegesis AT-style command interface based on the ZigBee PRO feature set Can act as an End Device, Router or Coordinator 22 general-purpose I/O lines including analogue inputs Firmware upgrades via serial port or over the air (password protected) Hardware supported encryption (AES-128) CE and FCC compliance, FCC modular approval Operating temperature range: -40C to +85C Standard version without LNA and PA available in the same form factor ec fo r Module Features N ew Image not shown actual size; enlarged to show detail. The module's unique AT-style command line interface allows designers to quickly integrate ZigBee technology without complex software engineering. For custom application development the ETRX35x series integrates with ease into Ember's InSight development environment. Development Kit New Development kit containing everything required to set up a mesh network quickly and evaluate range and performance of the ETRX35x and its long range version. AT-style software interface command dictionary can be modified for high volume customers. Custom software development available upon request. Example AT-Style Commands AT+BCAST AT+UCAST:
AT+EN AT+JN Send a Broadcast Send a Unicast Establish PAN network Join PAN At power-up the last configuration is loaded from nonvolatile S-Registers, which can eliminate the need for an additional host controller. Radio Features N Based on the Ember EM351 and EM357 single chip ZigBee / IEEE802.15.4 solutions 2.4GHz ISM Band 250kbit/s over the air data rate - NB: actual usable data throughput with ZigBee is about 20kbps 15 channels (IEEE802.15.4 Channel 11 to 25) SiGe SE2432L integrated PA and LNA +20dBm output power (adjustable down to -41dBm) High sensitivity of -106dBm typ. @ 1% packet error rate RX Current: 33mA, TX Current: approx 140mA at 20dBm Robust Wi-Fi and Bluetooth coexistence (c)2016 Silicon Labs -4- ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 1 Introduction es ig n This document describes the Telegesis ETRX351-LRS and ETRX357-LRS ZigBee long range modules which have been designed to be easily integrated into another device and to provide a fast, simple and low cost wireless mesh networking interface. D The Telegesis ETRX3 series modules are based on the Ember ZigBee platform consisting of the single chip EM351 or EM357 combined with the ZigBee PRO compliant EmberZNet meshing stack. Integration into a wide range of applications is made easy using a simple AT style command interface and advanced hardware design. N ew The configurable functionality of the Telegesis AT Commandset often allows the ETRX3 series ZigBee modules to be used without an additional host microcontroller saving even more integration time and costs. In addition to the Telegesis AT Commandset, the ETRX351-LRS and ETRX357LRS modules can be used with custom-built firmware and they represent an ideal platform for custom firmware development in conjunction with the Ember development kits. The ETRX3 series shares the same R3xx Telegesis firmware as the ETRX2 and the two devices can be used in the same network. fo r No RF experience or expertise is required to add this powerful wireless networking capability to your products. The ETRX351-LRS and ETRX357-LRS offer fast integration opportunities and the shortest possible time to market for your product. Hardware Description m en de d 1.1 The main building blocks of the ETRX351-LRS and ETRX357-LRS are the single chip EM351 and EM357 from Ember, a SiGe SE2432L frontend module combining a Power Amplifier with a Low Noise Amplifier, a 24MHz reference crystal and RF front-end circuitry optimized for best RF performance. The modules are available with on-board antenna or alternatively a U.FL connector for attaching external antennae. Modules with the U.FL connector are identified by the "HR" suffix. om The LNA and RF power amplifier of the LRS devices improve the output power by 12dB and the sensitivity by 5dB which will increase the range by approximately 700% relative to the standard devices (where local regulations permit the use of the maximum output power). ec The integrated antenna is an Antenova Rufa, and details of the radiation pattern etc are available from the Antenova website [5]. N ot R Module ETRX351-LRS ETRX351HR-LRS ETRX357-LRS ETRX357HR-LRS Chip EM351 EM351 EM357 EM357 Flash 128kB 128kB 192kB 192kB RAM 12kB 12kB 12kB 12kB Table 1: Memories The ETRX351-LRS and ETRX357-LRS are used for ZigBee (www.zigbee.org) applications. If you wish to create your own custom firmware, and not use the pre-loaded Telegesis AT-Command interface, you will need the InSight toolchain, consisting of InSight DesktopTM together with a comprehensive integrated development environment (IDE) and C-language compiler toolchain from Ember. The Ember development environment is not suitable for an 802.15.4-only application that does not use the ZigBee layer. (c)2016 Silicon Labs -5- ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 2 Product Approvals 2.1 es ig n The ETRX351-LRS and ETRX357-LRS as well as the ETRX351HR-LRS and ETRX357HR-LRS have been designed to meet all national regulations for world-wide use. In particular the following certifications have been obtained: FCC Approvals D The Telegesis ETRX351-LRS and ETRX357-LRS with integrated Antenna as well as the ETRX351HR-LRS and the ETRX357HR-LRS including the antennae listed in Table 2 comply with FCC CFR Part 15 (USA). The devices meet the requirements for modular transmitter approval as detailed in the FCC public notice DA00.1407.transmitter. The maximum permitted power settings are detailed in section 11.2 of this document. FCC ID: S4GEM35XB fo r N ew This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. m en de d This module complies with the USA SAR requirements and is not intended to be operated within 20cm of the body. The following statement must be included as a CAUTION statement in manuals for OEM products to alert users on FCC RF exposure compliance om "WARNING: To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 20cm or more should be maintained between the antenna of this device and persons during operation. To ensure compliance, operations at closer distances than this are not recommended." Manufacturer Embedded Antenna Design Ltd. Type 1/2 Wave Embedded Antenna Design Ltd. 1/4 Wave Embedded Antenna Design Ltd. 1/4 Wave Antenova Chip Impedance Gain 50 2 dBi 50 0 dBi 50 50 0 dBi 2.1dBi (peak) Table 2. Approved Antennae N ot R ec Item Part No. 1 BKR2400 BT-Stubby 2 (Straight) BT-Stubby 3 (right-angle) Rufa (on 4 board) An end user deploying an ETRX35x-LRS or an ETRX35xHR-LRS module together with an antenna as listed in Table 2 is not required to obtain a new authorization for the module - BUT this does not preclude the possibility that some other form of authorization or testing may be required for the end product depending upon local territorial regulations. (c)2016 Silicon Labs -6- ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by Telegesis (UK) Ltd. may void the user's authority to operate the equipment. es ig n When using the ETRX351HR-LRS and ETRX357HR-LRS with approved antennae, it is required to prevent end-users from replacing them with non-approved ones. FCC Labelling Requirements 2.2 N ew D When integrating the ETRX351-LRS, ETRX357-LRS, ETRX351HR-LRS and ETRX357HR-LRS into a product if must be ensured that the FCC labelling requirements are met. This includes a clearly visible label on the outside of the finished product specifying the Telegesis FCC identifier (FCC ID: S4GEM35XB) as well as the notice above. This exterior label can use wording such as "Contains Transmitter Module FCC ID: S4GEM35XB" or "Contains FCC ID: S4GEM35XB" although any similar wording that expresses the same meaning may be used. IC (Industry Canada) Approvals m en de d fo r The Telegesis ETRX351-LRS, ETRX357-LRS, ETRX351HR-LRS and ETRX357HR-LRS modules have been approved by Industry Canada to operate with the antenna types listed in Table 2 with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. The maximum permitted output power is 57mW (17.6dBm). IC-ID: 8735A-EM35XB This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. ec om Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication. N ot R To comply with Industry Canada RF radiation exposure limits for general population, the antenna(s) used for this transmitter must be installed such that a minimum separation distance of 20cm is maintained between the radiator (antenna) and all persons at all times and must not be co-located or operating in conjunction with any other antenna or transmitter. This device has been designed to operate with the antennas listed in Table 2, and having a maximum gain of 2.0 dBi. Antennas not included in this list or having a gain greater than 2.0 dBi are strictly prohibited for use with this device. The required antenna impedance is 50 ohms. The labelling requirements for Industry Canada are similar to those of the FCC. Again a clearly visible label must be placed on the outside of the finished product stating something like "Contains Transmitter Module, IC: 8735A-EM35XB", although any similar wording that expresses the same meaning may be used. (c)2016 Silicon Labs -7- ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 2.3 es ig n The integrator is responsible for final product compliance with IC ICES-003 and FCC Part 15, Sub. B - Unintentional Radiators. European Certification The ETRX351-LRS, ETRX357-LRS, ETRX351HR-LRS and ETRX357HR-LRS modules are tested at the maximum power setting defined in section 11.2 to comply to the following standards: EN 300 328 v1.8.1 EN 301 489-17 v2.2.1 EN 60950-1:2006 / A12:2011 D Radio: EMC: Safety: N ew The tests have been conducted with the antennae listed in Table 2. m en de d fo r If the ETRX351-LRS, ETRX357-LRS, ETRX351HR-LRS or ETRX357HR-LRS module is incorporated into an OEM product, the OEM product manufacturer must ensure compliance of the final product to the European Harmonised EMC, and low voltage/safety standards. A Declaration of Conformity must be issued for each of these standards and kept on file as described in the R&TTE Directive. The final product must not exceed the specified power ratings, antenna specifications and installation requirements as specified in this user manual. If any of these specifications are exceeded in the final product then a submission must be made to a notified body for compliance testing to all of the required standards. 2.4 ec om The `CE' marking must be applied to a visible location on any OEM product. For more information please refer to http://ec.europa.eu/enterprise/faq/ce-mark.htm. Customers assume full responsibility for learning and meeting the required guidelines for each country in their distribution market. ICASA Approvals ot R The ETRX351-LRS, ETRX357-LRS, ETRX351HR-LRS and ETRX357HR-LRS have been certified to be used in South Africa. 2.5 Australia and New Zealand (C-Tick) N The ETRX351-LRS, ETRX357-LRS, ETRX351HR-LRS and ETRX357HR-LRS have been certified to be used in Australia and New Zealand. In order to have a C-Tick mark on an end product integrating an ETRX3xx device, a company must comply with a or b below. a). have a company presence in Australia. (c)2016 Silicon Labs -8- ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS b). have a company/distributor/agent in Australia that will sponsor the importing of the en Brazil es ig n 2.6 Declarations of Conformity ot R 2.7 ec om m en de d fo r N ew D The ETRX357-LRS and ETRX357HR-LRS have been certified to be used in Brazil. N Telegesis (UK) Ltd has issued Declarations of Conformity for all ETRX3 series ZigBee RF Modules, which cover Radio Emissions, EMC and Safety. These documents will be available from our website or on request 2.8 IEEE 802.15.4 IEEE 802.15.4 is a standard for low data rate, wireless networks (raw bit-rate within a radio packet of 250kbps @2.4GHz) which focuses on low cost, low duty cycle, long primary battery life applications as well as mains-powered applications. It is the basis for the open ZigBee Protocol. (c)2016 Silicon Labs -9- ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 2.9 The ZigBee Protocol es ig n The ZigBee Protocol is a set of standards for wireless connectivity for use between any devices over short to medium distances. The specification was originally ratified in December 2004, paving the way for companies to start making low-power networks a reality. D ZigBee uses an IEEE 802.15.4 radio specification running on the 2.4GHz band, plus three additional layers for networking, security and applications. What makes the specification unique is its use of a mesh network architecture which, in bucket chain style, passes data from one node to the next until it lands at its destination. The network is self-healing and adapts its routing as link quality changes or nodes move. Furthermore, nodes can be defined as End Devices which do not act as routers, but can therefore be put into a low-power sleep state. fo r Truly self healing mesh networking Messages can now travel up to 30 hops Source-Routing for improved point to multipoint message transmission Improved security including Trust-Centre link keys New message types and options m en de d N ew The enhanced version of the ZigBee standard (or ZigBee 2006) was released in December 2006, adding new features and improvements to the only global wireless communication standard enabling the development of easily deployable low-cost, low-power, monitoring and control products for homes, commercial buildings and industrial plant monitoring. In 2007 the ZigBee Alliance introduced the PRO feature-set which offers advantages over earlier feature-sets, including N ot R ec om The Telegesis AT Command-set, which by default ships on all ETRX3 series products is based on the ZigBee PRO feature-set. For more information on the Telegesis AT Command-set please refer to the separate documentation at www.silabs.com/telegesisdocuments. (c)2016 Silicon Labs - 10 - ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS N ew D es ig n 3 Module Pinout fo r Figure 1. ETRX3 series Module Pinout (top view) m en de d The table below gives details about the pin assignment for direct SMD soldering of the ETRX3 series modules to the application board. For more information on the alternate functions please refer to [2]. Also refer to the Telegesis AT Command-set documentation to understand how the preprogrammed firmware makes use of the individual I/Os. ETRX35x pad Designation 1 om All GND pads are connected within the module, but for best RF performance all of them should be grounded externally. Alternate function EM35x pin GND PC5 {1} I/O PC6 PC7 PA7 {5} PB3 {2,3} nReset {6} PB4 {2,3} PA0 PA1 PA2 PA3 GND PA4 I/O I/O I/O I/O nReset I/O I/O I/O I/O I/O GND I/O 15 PA5 {4} I/O 27 16 PA6 {5} I/O 29 17 PB1 {2} TXD 30 18 PB2 {2} RXD 31 ot R 3 4 5 6 7 8 9 10 11 12 13 14 ec GND 2 N Normal function (c)2016 Silicon Labs Ember designation GND TX_ACTIVE CTS RTS 11 13 14 18 19 12 20 21 22 24 25 GND 26 - 11 - TX_ACTIVE. PC5 of the EM35x is used to control the FEM OSC32B, nTX_ACTIVE OSC32A, OSC32_EXT TIM1C4 SC1nCTS, SC1SCLK, TIM2C3 TIM2C4, SC1nRTS, SC1nSSEL TIM2C1, SC2MOSI TIM2C3, SC2SDA, SC2MISO TIM2C4, SC2SCL, SC2SCLK SC2nSSEL, TRACECLK, TIM2C2 ADC4, PTI_EN, TRACEDATA ADC5, PTI_DATA, nBOOTMODE, TRACEDATA3 TIM1C3 SC1MISO, SC1MOSI, SC1SDA, SC1TXD, TIM2C1 SC1MISO, SC1MOSI, SC1SCL, SC1RXD, TIM2C2 ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 GND GND JTCK PC2 PC3 PC4 N/C{1} PC1 PC0 {5} PB7 {5} PB6 {5} PB5 GND Vcc GND GND GND JTCK I/O I/O I/O N/C I/O I/O I/O I/O I/O GND Vcc GND Alternate function ADC3 ADC2 ADC1 ADC0 EM35x pin GND GND 32 33 34 35 36 38 40 41 42 43 GND Vcc GND Ember designation SWCLK JTDO, SWO JTDI JTMS, SWDIO PB0 of the EM35x is used to control the FEM ADC3, SWO, TRACEDATA0 JRST, IRQD, TRACEDATA1 ADC2, IRQC, TIM1C2 ADC1, IRQB, TIM1C1 ADC0, TIM2CLK, TIM1MSK es ig n Normal function D Designation N ew ETRX35x pad Table 3. Pin Information Notes: fo r {1} When the alternate GPIO function is selected, TX_ACTIVE becomes an output that indicates that the EM35x radio transceiver is in transmit mode. PC5 must not be used in this mode as it is needed internally as TX_ACTIVE to control the external RF front end and power amplifier. PB0 is not available to the user. m en de d {2} The serial UART connections TXD, RXD, CTS and RTS are PB1, PB2, PB3 and PB4 respectively. The device sends its data on TXD and receives on RXD. {3} When using the Telegesis AT Command-set, RTS/CTS handshaking is selectable in firmware. See the AT Command Manual. {4} If PA5 is driven low at power-up or reset the module will boot up in the bootloader {5} PA6, PA7, PB6, PB7 and PC0 can drive high current (see section 9) om {6} nRESET is level-sensitive, not edge-sensitive. The module is held in the reset state while nRESET is low ot R ec Alternate functions depend on the firmware, but the Telegesis R3xx AT Command-set functions are indicated here for convenience. N Important Note: The ETRX35x series and the ETRX35x-LRS series of modules are footprint compatible, but on the ETRX35x-LRS series pins PB0 and PC5 of the EM357 are used internally to control the front-end module and are not available to the user. PC5 is still available on Pad2, but it is configured as TX_ACTIVE signal and cannot be used as a general purpose GPIO. (c)2016 Silicon Labs - 12 - ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 4 Hardware Description I/O LDO 1V8 1,8Vdc integrated antenna A/D UART LDO 1V25 EM35x Match RESET Match 5 24MHz RESET JTAG programming fo r rf U.FL socket terminal selection, filtering and matching circuitry I/O N ew FEM es ig n Vcc D Vreg m en de d Figure 2. Hardware Diagram The ETRX351-LRS and ETRX357-LRS are based on the Ember EM351 and EM357 respectively in addition to a frontend module containing a PA, LNA and RF switch in addition to the RF-Frontend. The EM351 and EM357 are fully integrated 2.4GHz ZigBee transceivers with a 32-bit ARM(R) Cortex M3TM microprocessor, flash and RAM memory, and peripherals. The industry standard serial wire and JTAG programming and debugging interfaces together with the standard ARM system debug components help to streamline any custom software development. om In addition to this a number of MAC functions are also implemented in hardware to help maintain the strict timing requirements imposed by the ZigBee and IEEE802.15.4 standards. ec The new advanced power management features allow faster wakeup from sleep and new powerdown modes allow this 3rd generation module to offer a longer battery life than any 2nd generation modules on the market. N ot R The EM35x has fully integrated voltage regulators for both required 1.8V and 1.25V supply voltages. The voltages are monitored (brown-out detection) and the built in power-on-reset circuit eliminates the need for any external monitoring circuitry. A 32.768kHz watch crystal can be connected externally to pads 3 and 4 in case more accurate timing is required. 4.1 Hardware Interface All GPIO pins of the EM351 or EM357 except PB0 and PC5 are accessible on the module's pads. Whether signals are used as general purpose I/Os, or assigned to a peripheral function like ADC is set by the firmware. When using the Telegesis AT Command-set please refer to the AT Commandset manual for this information and when developing custom firmware please refer to the EM35x datasheet. (c)2016 Silicon Labs - 13 - ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 5 Firmware Description The modules will be pre-loaded with a standalone bootloader by Ember, which supports over-the-air bootloading as well as serial bootloading of new firmware. es ig n In order to enter the standalone bootloader using a hardware trigger pull PA5 to ground and powercycle or reset the module. To avoid entering the standalone bootloader unintentionally make sure not to pull this pin down during boot-up unless the resistance to ground is >10k. A pull-up is not required). N ew D In addition to the standalone bootloader the modules also contain the current release of the Telegesis AT-style command interface as described in the Telegesis AT command dictionary and the Telegesis user guide. Check www.silabs.com/telegesisdocuments for updates. Each module comes with a unique 64-bit 802.15.4 identifier which is stored in non-volatile memory. The commands and responses pass through the serial port of the ETRX35x-LRS as ASCII text, so a simple terminal application will usually suffice. Telegesis Terminal is provided as a development tool, but it is not an essential feature. m en de d fo r The pre-loaded AT-style command interface firmware is based on the latest EmberZNet meshing stack which implements routers/coordinators as well as (sleepy) end devices. [End devices have no routing responsibility and therefore are allowed to go to sleep, whilst still being able to send and receive messages via a parent router. In addition to a classical (sleepy) end device the module firmware also supports mobile (sleepy) end devices capable of changing their parent quickly whenever they change their position within the network.] A router is typically a mains powered device whilst a sleepy end device (SED) can be battery powered. The module is also able to act as a PAN coordinator and Trust Centre through external host control. The AT style command line supplies all the tools required to set up and manage a ZigBee network by allowing easy access to the low-level functionality of the stack. om The Telegesis firmware uses the meshing and self healing EmberZNet PRO stack to overcome many of the limitations of the tree network topology of the ZigBee 2006 stack by using the ZigBee PRO feature-set. N ot R ec The Telegesis firmware also allows low-level access to physical parameters such as radio channel and power level. Parameters that define the functionality of the ETRX35x-LRS module and also allow standalone functionality are saved in non-volatile memory organised in so-called S-Registers. The SPI and I2C buses are not supported by the current firmware release, but can be used with custom firmware. (c)2016 Silicon Labs - 14 - ETRX35x-LRS Product Manual (Rev 1.08) ETRX351-LRS and ETRX357-LRS 5.1 Token Settings The ETRX3 Series Modules' tokens will be pre-programmed with the settings shown in the table below. es ig n TG Default