EM357-RTR datasheet(3/241 Pages) SILABS

3 / 241 page

Rev 1.3

Ta ble of Contents

1. Typical Application .............................................................................................................. 5

2. Electrical Specifications...................................................................................................... 8

2.1. Absolute Maximum Ratings............................................................................................8

2.2. Recommended Operating Conditions ............................................................................8

2.3. Environmental Characteristics........................................................................................9

2.4. DC Electrical Characteristics..........................................................................................9

2.5. Digital I/O Specifications ..............................................................................................14

2.6. Non-RF System Electrical Characteristics ...................................................................15

2.7. RF Electrical Characteristics ........................................................................................16

3. Functional Description ...................................................................................................... 22

4. Radio Module ..................................................................................................................... 25

4.1. Receive (RX) Path........................................................................................................25

4.2. Transmit (TX) Path .......................................................................................................25

4.3. Calibration ....................................................................................................................25

4.4. Integrated MAC Module ...............................................................................................26

4.5. Packet Trace Interface (PTI) ........................................................................................26

4.6. Random Number Generator.........................................................................................26

5. ARM® Cortex™-M3 and Memory Modules ...................................................................... 27

5.1. ARM® Cortex™-M3 Microprocessor............................................................................27

5.2. Embedded Memory ......................................................................................................27

5.3. Memory Protection Unit................................................................................................34

6. System Modules................................................................................................................. 35

6.1. Power Domains ............................................................................................................36

6.2. Resets ..........................................................................................................................37

6.3. Clocks...........................................................................................................................40

6.4. System Timers .............................................................................................................45

6.5. Power Management .....................................................................................................46

6.6. Security Accelerator .....................................................................................................49

7. GPIO (General Purpose Input/Output) ............................................................................. 50

7.1. GPIO Ports ...................................................................................................................51

7.2. Configuration ................................................................................................................51

7.3. Forced Functions..........................................................................................................52

7.4. Reset ............................................................................................................................53

7.5. Boot Configuration........................................................................................................53

7.6. GPIO Modes.................................................................................................................54

7.7. Wake Monitoring ..........................................................................................................55

7.8. External Interrupts ........................................................................................................55

7.9. Debug Control and Status ............................................................................................56

7.10.GPIO Signal Assignment Summary.............................................................................57

7.11.Registers......................................................................................................................58

8. Serial Controllers ............................................................................................................... 70

8.1. Overview ......................................................................................................................70

8.2. Configuration ................................................................................................................71

8.3. SPI - Master Mode .......................................................................................................76

EM357-RTR Datasheet(PDF) 3 Page - Silicon Laboratories

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