EM357-RTR datasheet(3/240 Pages) ETC2

3 / 240 page

EM351 / EM357

Contents

Pin Assignments

1-1

Electrical Characteristics

2-1

2.1 Absolute Maximum Ratings

2-1

2.2 Recommended Operating

Conditions

2-1

2.3 Environmental Characteristics

2-2

2.4 DC Electrical Characteristics

2-2

2.5 Digital I/O Specifications

2-5

2.6 Non-RF System Electrical

Characteristics

2-6

2.7 RF Electrical Characteristics

2-7

2.7.1 Receive

2-7

2.7.2 Transmit

2-8

2.7.3 Synthesizer

2-10

Top-Level Functional Description 3-1

Radio Module

4-1

4.1 Receive (Rx) Path

4-1

4.1.1 Rx Baseband

4-1

4.1.2 RSSI and CCA

4-1

4.2 Transmit (Tx) Path

4-1

4.2.1 Tx Baseband

4-1

4.2.2 TX_ACTIVE and nTX_ACTIVE

Signals

4-1

4.3 Calibration

4-2

4.4 Integrated MAC Module

4-2

4.5 Packet Trace Interface (PTI)

4-2

4.6 Random Number Generator

4-2

ARM® CortexTM-M3 and Memory

Modules

5-1

5.1 ARM® CortexTM-M3 Microprocessor 5-1

5.2 Embedded Memory

5-2

5.2.1 Flash Memory

5-4

5.2.2 RAM

5-7

5.2.3 Registers

5-8

5.3 Memory Protection Unit

5-8

System Modules

6-1

6.1 Power domains

6-2

6.1.1 Internally regulated power

6-2

6.1.2 Externally regulated power 6-2

6.2 Resets

6-2

6.2.1 Reset Sources

6-3

6.2.2 Reset Recording

6-4

6.2.3 Reset Generation

6-5

6.3 Clocks

6-5

6.3.1 High-Frequency Internal RC

Oscillator (OSCHF)

6-7

6.3.2 High-Frequency Crystal

Oscillator (OSC24M)

6-7

6.3.3 Low-Frequency Internal RC

Oscillator (OSCRC)

6-8

6.3.4 Low-Frequency Crystal

Oscillator (OSC32K)

6-8

6.3.5 Clock Switching

6-9

6.4 System Timers

6-9

6.4.1 Watchdog Timer

6-9

6.4.2 Sleep Timer

6-10

6.4.3 Event Timer

6-10

6.5 Power Management

6-10

6.5.1 Wake Sources

6-11

6.5.2 Basic Sleep Modes

6-12

6.5.3 Further options for

deep sleep

6-13

6.5.4 Use of debugger with

sleep modes

6-13

6.5.5 Registers

6-14

6.6 Security Accelerator

6-14

GPIO (General Purpose Input /

Output)

7-1

7.1 GPIO Ports

7-1

7.2 Configuration

7-2

7.3 Forced Functions

7-3

7.4 Reset

7-4

7.5 Boot Configuration

7-4

7.6 GPIO Modes

7-5

7.6.1 Analog Mode

7-5

7.6.2 Input Mode

7-6

7.6.3 Output Mode

7-6

7.6.4 Alternate Output Mode

7-6

7.7 Wake Monitoring

7-7

7.8 External Interrupts

7-7

7.9 Debug Control and Status

7-8

7.10 GPIO Signal Assignment Summary

7-8

7.11 Registers

7-10

Serial Controllers

8-1

8.1 Overview

8-1

8.2 Configuration

8-2

8.2.1 Registers

8-3

8.3 SPI - Master Mode

8-6

8.3.1 GPIO Usage

8-6

8.3.2 Set Up and Configuration

8-7

Preliminary

120-035X-000D

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