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IR LRM2 Radio Module
Introduction
Document p/n: 9S02-9027-A001 Rev.A
Product Development
IR LRM2 Radio Module
Document p/n: 9S02-9027-A001 Rev.A
CONFIDENTIALITY NOTICE
This correspondence and all information contained within are the exclusive, confidential and proprietary
property of Cattron North America Inc. it is not to be reproduced, nor is it or any portion of it to be used by
or disclosed to any other individual or legal entity, without the prior, written approval of Cattron North
America Inc. Furthermore, the information contained within this correspondence is also to be handled in
accordance with any and all confidentiality agreements between Cattron North America Inc. and the
receiver or user of this information.
.
© 2020 Cattron North America Inc.
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Related Manuals for Cattron IR LRM2
Summary of Contents for Cattron IR LRM2
- Page 1 This correspondence and all information contained within are the exclusive, confidential and proprietary property of Cattron North America Inc. it is not to be reproduced, nor is it or any portion of it to be used by or disclosed to any other individual or legal entity, without the prior, written approval of Cattron North America Inc.
- Page 2 IR LRM2 Radio Module Introduction Document p/n: 9S02-9027-A001 Rev.A Revision History Date Revision Description Signature / Date 2020-03-10 A Initial draft Prepared H. Lin Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved...
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Page 3: Table Of Contents
Block Diagram ..................Error! Bookmark not defined. 4.1.2 Data Communication Model & Definitions ....................4-5 ..........................4-6 ELEGRAM RANSMISSION ...........................4-6 ELEGRAM ECEPTION IR LRM2 CONFIGURATION CONCEPT ....................5-8 ............................5-8 ONSOLE NTERFACE “Write” command ...........................5-8 5.1.1 “Read” command ............................5-8 5.1.2 “Help” command ............................5-8 5.1.3 ..........................5-8... - Page 4 WARNING: The 90275TRX modules have been tested by the FCC for use with other products without further certification (as per FCC Section 2.1091). Changes or modifications to this device not expressly approved by Cattron North America Inc. could void the user’s authority to operate the equipment.
- Page 5 IR LRM2 Radio Module Introduction Document p/n: 9S02-9027-A001 Rev.A FCC Part 15.19 Warning Statement 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.
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Page 6: Introduction
Introduction Purpose A new family of RF module, the LRM2 family, is being developed by Cattron North America Inc. This family is employing Silicon Labs EFR32FG13 Flex Gecko SoC (System On Chip), which is including a high performance Radio transceiver and a high performance Micro-Controller Unit. -
Page 7: Features Summary
Features Summary Document p/n: 9S02-9027-A001 Rev.A Features Summary The IR LRM2 is designed to replace Remtron products with less cost and improved performance. Its host interface is compatible with previous LRM(2PCA-7954-xxxx) series. • Direct electrical compatibility to LRM (2PCA-7954-xxxx) interface •... -
Page 8: Host Interface Definition
IR LRM2 Radio Module Host Interface Definition Document p/n: 9S02-9027-A001 Rev.A Host Interface Definition Pins Assignment Board to board connector Pin Details Pin number Signal name Pin number Signal name TDI-RF nRESET-RF MASTER-CTRL-US1-RX-M RFIO-2-M MASTER-DATA-US0-TX-M I2C0-SDA-RF RFIO-3-M I2C0-SCL-RF TDO-RF MASTER-DATA-US0-RX-M... -
Page 9: Signals Description
Analog power supply ANT_SEL (GPIO to enable RF switch#03 which will be located on ANT_SEL MCU board) GPIO for RED LED. Multiplexed with FWD_AN (For power amplifier. It is not FWD_AN required in our design. Just provision for cattron team) - Page 10 IR LRM2 Radio Module Host Interface Definition Document p/n: 9S02-9027-A001 Rev.A Voltage regulator VSS Kept it NC 3.3V 3.3V Supply 3.3V 3.3V Supply GND with decoupling cap Decouple output for on-chip voltage regulator 3.3V 3.3V Supply BOOT-EN/RFIO-0-M RFIO-1-M RFIO-1_Master I2C0-SCL-RF...
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Page 11: Functional Description
Overview 4.1.1 IR LRM2 Radio Figure 4.1 – IR LRM2 Design The Silicon Labs ERF32FG13 SoC is located between the host interface and the RF interface, providing decoupling between host and RF interface. The EFR32FG13 SoC has sufficient buffer space for one telegram. -
Page 12: Telegram Transmission
The IR LRM2 Radio Module is used to communicate telegrams between hosts. In Unity context, hosts are OCU and MCU CPU boards. The IR LRM2 has two interfaces: a Host Interface and a RF Interface. Transmit and Received Telegrams are relayed through the IR LRM2 Host Data Buffer. This buffer is capable to hold only one telegram at a time. - Page 13 IR LRM2 Radio Module Functional Description Document p/n: 9S02-9027-A001 Rev.A RSSI: Received signal strength for this frame. RSSI is an 8 bits integer value, expressed in dBm. Range;-128 to +127 dBm. “Length” bytes 1 byte 1 byte 1 byte Length...
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Page 14: Ir Lrm2 Configuration Concept
The IR LRM2 responds with the list off all available configuration registers. Stand-Alone Test Mode The IR LRM2 can be operated in stand-alone mode for production/service tests. In this case, only a 3.3VDC supply is needed, and a RS232/TTL transceiver (like Cattron FLASHBOX) to connect to a PC serial port. - Page 15 *Note: The LRM !RX_EN, !TX_EN and !RESET all have internal pull-ups, so they can be left unconnected. Figure 5.1 - LRM2 connection for stand-alone operation The IR LRM2 will support several built-in test modes to ease testing from a PC. For example a. Sub-GHz Transmission Tests - Generation of different type of carrier: unmodulated (CW), or modulated with “101010..”...