用户手册 — Murata Electronics North America CCT24

目录

• Introduction

  5
• Why Spread Spectrum?

  5
• Frequency Hopping versus Direct Sequence

  6
• CCT24 Radio Operation

  7
• Network Synchronization and Registration

  7
• Authentication

  8
• Serial Port Modes

  8
• SPI Port Modes

  9
• RF Data Communications

  9
• RF Transmission Error Control

  10
• Transmitter Power Management

  10
• Network Configurations

  10
• Point-to-Point Network Operation

  10
• Point-to-Multipoint Network Operation

  11
• Multipoint Peer-to-Peer Network Operation

  11
• Tree Routing System Operation

  12
• Full-Duplex Serial Data Communications

  12
• Channel Access

  12
• Polling Mode

  13
• CSMA Mode

  13
• TDMA Modes

  14
• Transmission Configuration Planning

  15
• TDMA Throughput

  15
• Polling Throughput

  16
• CSMA Throughput

  16
• Latency

  17
• Configuration Validation

  18
• Tree-Routing Systems

  20
• Example Tree-Routing System

  20
• Tree-Routing System Networks

  22
• Tree-Routing System Addressing

  22
• Tree-Routing System Implementation Options

  23
• Serial Port Operation

  25
• SPI Port Operation

  26
• Sleep Modes

  29
• Encryption

  31
• Synchronizing Co-located Bases

  31
• CCT24 Hardware

  33
• Specifications

  34
• Module Interface

  35
• CCT24 Antenna Connector

  36
• Input Voltages

  37
• ESD and Transient Protection

  37
• Interfacing to 5 V Logic Systems

  37
• Power-On Reset Requirements

  38
• Mounting and Enclosures

  38
• Labeling and Notices

  38
• Protocol Messages

  40
• Protocol Message Formats

  40
• Message Types

  40
• Message Format Details

  41
• /CFG Select Pin

  43
• Flow Control

  43
• Protocol Mode Data Message Example

  43
• Protocol Mode Tree-Routing MAC Address Discovery Example

  43
• Configuration Registers

  44
• Bank 0 - Transceiver Setup

  44
• Bank 1 - System Settings

  47
• Bank 2 - Status Registers

  50
• Bank 3 - Serial and SPI Settings

  52
• Bank 4 - Host Protocol Settings

  55
• Bank 5 - I/O Peripheral Registers

  56
• Bank 6 - I/O Setup

  57
• Bank 7 - Authentication List

  59
• Bank 8 - Tree-Routing Active Router ID Table

  59
• Bank 9 - Registered MAC Addresses

  59
• Bank FF - Special Functions

  60
• Protocol Mode Configuration Example

  61
• Protocol Mode Sensor Message Example

  61
• Protocol Mode Event Message Example

  61
• CCT24DK Developer’s Kit

  62
• CCT24DK Kit Contents

  62
• Additional Items Needed

  62
• Developer’s Kit Operational Notes

  62
• Developer’s Kit Default Operating Configuration

  63
• Developer’s Kit Hardware Assembly

  63
• DNT Demo Utility Program

  65
• Initial Kit Operation

  66
• Serial Communication and Radio Configuration

  67
• DNT Wizard Utility Program

  75
• CCT24 Interface Board Features

  83
• Demonstration Procedure

  85
• Troubleshooting

  86
• Diagnostic Port Commands

  86
• Appendices

  89
• Ordering Information

  89
• Technical Support

  89
• Warranty

  90