EM341 datasheet(2/237 Pages) SILABS

2 / 237 page

EM341

Rev 1.0

Table of Contents

1. Typical Application..............................................................................................................4

2. Electrical Specifications......................................................................................................7

2.1. Absolute Maximum Ratings............................................................................................7

2.2. Recommended Operating Conditions ............................................................................7

2.3. Environmental Characteristics........................................................................................8

2.4. DC Electrical Characteristics..........................................................................................8

2.5. Digital I/O Specifications ..............................................................................................13

2.6. Non-RF System Electrical Characteristics ...................................................................14

2.7. RF Electrical Characteristics ........................................................................................15

3. Functional Description......................................................................................................21

4. Radio Module .....................................................................................................................24

4.1. Receive (RX) Path........................................................................................................24

4.2. Transmit (TX) Path .......................................................................................................24

4.3. Calibration ....................................................................................................................24

4.4. Integrated MAC Module ...............................................................................................25

4.5. Packet Trace Interface (PTI) ........................................................................................25

4.6. Random Number Generator.........................................................................................25

5. ARM® Cortex™-M3 and Memory Modules ......................................................................26

5.1. ARM® Cortex™-M3 Microprocessor............................................................................26

5.2. Embedded Memory ......................................................................................................26

5.3. Memory Protection Unit................................................................................................32

6. System Modules.................................................................................................................33

6.1. Power Domains ............................................................................................................34

6.2. Resets ..........................................................................................................................35

6.3. Clocks...........................................................................................................................38

6.4. System Timers .............................................................................................................43

6.5. Power Management .....................................................................................................44

6.6. Security Accelerator .....................................................................................................47

7. GPIO (General Purpose Input/Output) .............................................................................48

7.1. GPIO Ports ...................................................................................................................49

7.2. Configuration ................................................................................................................49

7.3. Forced Functions..........................................................................................................50

7.4. Reset ............................................................................................................................50

7.5. Boot Configuration........................................................................................................51

7.6. GPIO Modes.................................................................................................................51

7.7. Wake Monitoring ..........................................................................................................52

7.8. External Interrupts ........................................................................................................53

7.9. Debug Control and Status ............................................................................................54

7.10.GPIO Signal Assignment Summary.............................................................................55

7.11.Registers......................................................................................................................56

8. Serial Controllers...............................................................................................................68

8.1. Overview ......................................................................................................................68

8.2. Configuration ................................................................................................................69

8.3. SPI—Slave Mode .........................................................................................................74

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