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.
7.
Description of the Registers.................................................................................................................................. 64
6.1.
6.2.
Register Table Summary .............................................................................................................................. 64
Register Map................................................................................................................................................. 67
Application Information ......................................................................................................................................... 81
7.1.
7.2.
Crystal Resonator Specification.................................................................................................................... 81
Reset of the Chip .......................................................................................................................................... 81
7.2.1. POR.......................................................................................................................................................... 81
7.2.2. Manual Reset ............................................................................................................................................ 82
7.3.
7.4.
Reference Designs........................................................................................................................................ 82
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.
7.7.
Example CRC Calculation ............................................................................................................................. 92
Example Temperature Reading .................................................................................................................... 93
8.
9.
Packaging Information .......................................................................................................................................... 94
8.1.
Package Outline Drawing.............................................................................................................................. 94
Recommended Land Pattern ........................................................................................................................ 94
Thermal Impedance ...................................................................................................................................... 95
Tape & Reel Specification............................................................................................................................. 95
8.2.
8.3.
8.4.
Revision History.................................................................................................................................................... 96
Rev 3 - August 2012
Page 4
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