SX1232 View Datasheet(PDF) - Semtech Corporation

Part Name

Description

Manufacturer

SX1232

868 & 915MHz Ultra Low Power High Link Budget Integrated UHF Transceiver

Semtech Corporation 

SX1232

WIRELESS & SENSING

DATASHEET

5.5. Packet Mode ................................................................................................................................................. 55

5.5.1. General Description.................................................................................................................................. 55

5.5.2. Packet Format .......................................................................................................................................... 56

5.5.3. Tx Processing........................................................................................................................................... 59

5.5.4. Rx Processing .......................................................................................................................................... 59

5.5.5. Handling Large Packets ........................................................................................................................... 60

5.5.6. Packet Filtering......................................................................................................................................... 60

5.5.7. DC-Free Data Mechanisms ....................................................................................................................... 62

5.5.8. Beacon Tx Mode ...................................................................................................................................... 63

5.6. io-homecontrol® Compatibility Mode ............................................................................................................ 63

6. Description of the Registers.................................................................................................................................. 64

6.1. Register Table Summary .............................................................................................................................. 64

6.2. Register Map................................................................................................................................................. 67

7. Application Information ......................................................................................................................................... 81

7.1. Crystal Resonator Specification .................................................................................................................... 81

7.2. Reset of the Chip .......................................................................................................................................... 81

7.2.1. POR.......................................................................................................................................................... 81

7.2.2. Manual Reset ............................................................................................................................................ 82

7.3. Reference Designs........................................................................................................................................ 82

7.4. Top Sequencer: Listen Mode Examples ....................................................................................................... 85

7.4.1. Wake on Preamble Interrupt .................................................................................................................... 85

7.4.2. Wake on SyncAddress Interrupt............................................................................................................... 87

7.5. Top Sequencer: Beacon Mode ..................................................................................................................... 90

7.5.1. Timing diagram......................................................................................................................................... 90

7.5.2. Sequencer Configuration.......................................................................................................................... 90

7.6. Example CRC Calculation ............................................................................................................................. 92

7.7. Example Temperature Reading .................................................................................................................... 93

8. Packaging Information .......................................................................................................................................... 94

8.1. Package Outline Drawing.............................................................................................................................. 94

8.2. Recommended Land Pattern ........................................................................................................................ 94

8.3. Thermal Impedance ...................................................................................................................................... 95

8.4. Tape & Reel Specification............................................................................................................................. 95

9. Revision History .................................................................................................................................................... 96

Rev 3 - August 2012

Page 4

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