EM357 datasheet(4/244 Pages) SILABS

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EM351 / EM357

8.3.2

Set Up and Configuration

8-7

8.3.3

Operation

8-8

8.3.4

Interrupts

8-9

8.3.5

Registers

8-10

8.4 SPI - Slave Mode

8-14

8.4.1

GPIO Usage

8-14

8.4.2

Set Up and Configuration 8-15

8.4.3

Operation

8-16

8.4.4

DMA

8-17

8.4.5

Interrupts

8-17

8.4.6

Registers

8-18

8.5 TWI - Two Wire serial Interfaces 8-18

8.5.1

GPIO Usage

8-18

8.5.2

Set Up and Configuration 8-18

8.5.3

Constructing Frames

8-19

8.5.4

Interrupts

8-21

8.5.5

Registers

8-22

8.6 UART - Universal Asynchronous

Receiver / Transmitter

8-24

8.6.1

GPIO Usage

8-24

8.6.2

Set Up and Configuration 8-25

8.6.3

FIFOs

8-27

8.6.4

RTS/CTS Flow control

8-27

8.6.5

DMA

8-28

8.6.6

Interrupts

8-28

8.6.7

Registers

8-29

8.7 DMA Channels

8-32

8.7.1

Registers

8-34

9 General Purpose Timers (TIM1 and

TIM2)

9-1

9.1 Introduction

9-1

9.2 GPIO Usage

9-3

9.3 Timer Functional Description

9-3

9.3.1

Time-Base Unit

9-3

9.3.2

Counter Modes

9-4

9.3.3

Clock Selection

9-9

9.3.4

Capture/Compare

Channels

9-12

9.3.5

Input Capture Mode

9-13

9.3.6

PWM Input Mode

9-14

9.3.7

Forced Output Mode

9-15

9.3.8

Output Compare Mode

9-15

9.3.9

PWM Mode

9-16

9.3.10 One-Pulse Mode

9-19

9.3.11 Encoder Interface Mode

9-20

9.3.12 Timer Input XOR Function 9-22

9.3.13 Timers and External

Trigger Synchronization

9-22

9.3.14 Timer Synchronization

9-25

9.3.15 Timer Signal Descriptions 9-29

9.4 Interrupts

9-30

9.5 Registers

9-31

10 ADC (Analog to Digital Converter) 10-1

10.1 Setup and Configuration

10-1

10.1.1 GPIO Usage

10-2

10.1.2 Voltage Reference

10-2

10.1.3 Offset/Gain Correction

10-2

10.1.4 DMA

10-3

10.1.5 ADC Configuration

10-3

10.2 Interrupts

10-5

10.3 Operation

10-6

10.4 Calibration

10-7

10.5 ADC Key Parameters

10-8

10.6 Registers

10-13

11 Interrupt System

11-1

11.1 Nested Vectored Interrupt

Controller (NVIC)

11-1

11.2 Event Manager

11-3

11.3 Non-maskable Interrupt (NMI)

11-6

11.4 Faults

11-6

11.5 Registers

11-7

12 Trace Port Interface Unit (TPIU) 12-1

13 Instrumentation Trace

Macrocell (ITM)

13-1

14 Data Watchpoint and

Trace (DWT)

14-1

15 Flash Patch and Breakpoint (FPB) 15-1

16 Integrated Voltage Regulator

16-1

17 Serial Wire and JTAG

(SWJ) Interface

17-1

18 Typical Application

18-1

19 Mechanical Details

19-1

19.1 QFN48 Footprint

Recommendations

19-1

19.2 Solder Temperature Profile

19-3

20 Part Marking

20-1

21 Ordering Information

21-1

22 Shipping Box Label

22-1

23 Revision History

23-1

Appendix A Register Address Table

A-1

Appendix B Abbreviations and

Acronyms

B-1

Appendix C References

C-1

Final

120-035X-000 Rev. 1.2

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