Beschreibung / Abstract

Inhaltsverzeichnis

• Cover
• About the author
• Contents
• 1. Historical Background of I2C
• 2. I2C from a Hardware Perspective
• 3. Bus Architecture
• 3.1 Basic Terminology
• 4. The Basic I2C Protocol
• 4.1 Flowchart
• 5. Bus Events
• 5.1 Additional Terminology
• 5.2 Idle Bus
• 5.3 Start and Stop Events
• 5.4 Putting Information on the Bus
• 5.5 Addressing a Slave
• 5.6 Acknowledge
• 5.7 NACK or not ACK
• 5.8 Key Elements to Remember
• 5.9 Bus Stalling
• 5.10 Getting Acknowledge from the Master's Perspective
• 5.11 Giving Acknowledge from the Master's Perspective
• 5.12 Giving Not ACK from the Master's Perspective
• 6. Exchanging Information
• 6.1 Writing One Byte to a Slave
• 6.2 Writing more than One Byte to a Slave
• 6.3 Reading One Byte from a Slave
• 6.4 Reading Multiple Bytes from a Slave
• 6.5 Determining the Slave Access Mode
• 6.6 The Combined Data Format
• 7. Multi Master Communication
• 7.1 An Example
• 7.2 Additional Testing
• 8. Bus Synchronisation
• 8.1 An Example
• 9. Special Addresses and Exceptions
• 9.1 General Call Address
• 9.2 Start Byte
• 9.3 CBUS Address
• 9.4 High Speed Master Code
• 9.5 10-BIT Call Address
• 9.6 Device ID
• 10. Speed Modes
• 10.1 Standard Mode
• 10.2 Fast Mode
• 10.3 Fast Mode +
• 10.4 High Speed Mode
• 11. Additional I2C Uses
• 11.1 SMBUS
• 11.2 PMBUS
• 11.3 IPMI
• 11.4 ATCA
• 12. Electrical Specifications of the I2C Bus
• 12.1 Enhanced I2C (Fast Mode)
• 12.2 Extended Addressing
• 13. Designing the Bus System
• 13.1 Adressing
• 13.2 Bus Expansion
• 14. F.A.Q.: Hardware
• 14.1 What is the maximum allowed length of the bus?
• 14.2 I want to transport I2C over a long distance or off board
• 14.3 I want to extend it "By the Book". Is there something like a buffer for I2C?
• 14.4 Can I isolate an I2C Bus? (using optocoupler or some other means)
• 14.5 What if I run out of addresses? Is there an I2C router?
• 14.6 Level Shifting the I2C Bus
• 14.7 Is there something like a standalone I2C controller?
• 14.8 Why does the clock need to be bidirectional
• 15. F.A.Q.: Protocol
• 15.1 How do I generate a repeated start condition after the last byte
• 15.2 What if I was in receive mode, how do I create the repeat start?
• 15.3 Is it okey to abort an ongoing transmission any time?
• 15.4 Do I need to give the ACK in read mode on the last byte?
• 16. Q&A Section: Troubleshooting
• 16.1 Can I monitor an I2C Bus in some way?
• 16.2 USBEE
• 16.3 Is there a way to test/debug I2C busses?
• 16.4 I want to experiment with I2C, are there demo kits available?
• 17. An I2C Driver in Pseudocode
• 18. Debugging Tools
• 18.1 I2C Trigger Generator
• 18.2 Checking who is Controlling the Bus
• 19. I2C Interfacing System for the IBM-PC
• 19.1 Parallel Printer Port Interface
• 19.2 Access Bus
• 19.3 I2C In your Computer
• 20. Commonly Used I2C Devices
• 20.1 I/0 Expanders
• 20.2 LED and LCD Display Controllers
• 20.3 A/D and D/A Converters
• 20.4 Audio and Video Circuitry
• 20.5 EEPROM Memories
• 20.6 Real Time Clocks
• 20.7 I2C Isolators
• 20.8 Bus Multiplexers and Expanders
• 21. Labsticks I2C Introduction
• 21.1 Board 1
• 21.2 Board 2
• 22. Labstick 1.1: I2C Probe
• 22.1 Probe Hardware
• 22.2 Command Set
• 22.3 Base Commands
• 22.4 Data Transport
• 22.5 Simple Stream Examples
• 22.6 Support Functions
• 22.7 Low Level Functions
• 22.8 Assembly Drawing
• 22.9 Bill of Materials
• 23. Labstick 1-2: Universal Power Supply
• 23.1 Assembly Drawing
• 23.2 Bill of Materials
• 23.3 Selecting the Output Voltage
• 24. Labstick 1-3: 24XXX EEPROM
• 24.1 Devices
• 24.2 Usage
• 24.3 Pitfalls with E2Proms
• 24.4 Assembly Drawing
• 24.5 Bill of Materials
• 25. Labstick 1-4: PWM LED Controller
• 25.1 Address
• 25.2 Usage
• 25.3 Assembly Drawing
• 25.4 Bill of Materials
• 26. Labstick 1-5: LCD / Keyboard User Interface
• 26.1 Initialization
• 26.2 Keyboard Access
• 26.3 Circuit Board
• 26.4 Assembly
• 27. Labstick 1-6: LM75 (A) Temperature Sensor
• 27.1 Device Address
• 27.2 Usage
• 27.3 Assembly Drawing
• 27.4 Bill of Materials
• 28. Labstick 1-7: PCF8563 Realtime Clock
• 28.1 Device Address
• 28.2 Usage
• 28.3 Alarm Operation
• 28.4 Assembly Drawing
• 28.5 Bill of Materials
• 29. Labstick 1-8: 8-BIT Protected Output
• 29.1. Assembly
• 29.2 Bill of Materials
• 30. Labstick 1-9: 8-BIT Protected Inpuit
• 30.1 Schematic
• 30.2 Circuit Board
• 30.3 Bill of Materials
• 30.4 Some Application Information
• 31. Labstick 1-19 MCP4725 D/A Converters
• 31.1 Device Address
• 31.2 Usage
• 31.3 Read Operations
• 31.4 Assembly Drawing
• 31.5 Bill of Materials
• 32. Labstick 1-11: ADC081 / ADC101 / ADC121 A/D Converters
• 32.1 Device Address
• 32.2 Usage
• 32.3 Write Operations
• 32.4 Read Operations
• 32.5 Assembly Drawing
• 32.6 Bill of Materials
• 33. Labstick 1-12 PCF8591 Combined A/D and D/A Converter
• 33.1 PCA9691
• 33.2 Assembly Drawing
• 33.3 Bill of Materials
• 34. Labstick 1-13: Potentiometer
• 34.1 Functional Differences
• 34.2 Device Address
• 34.3 Usage
• 34.4 The 'D' Version
• 34.5 Assembly Drawing
• 34.6 Bill of Materials
• 35. Labstick 1-14: PCA9544 I2C Multiplexer
• 35.1 Device Address
• 35.2 Usage
• 35.3 Assembly Drawing
• 35.4 Bill of Materials
• 36. Labstick 1-15: PCF8574(A) /PCA9XXX Universal I/O Expander
• 36.1 Schematic
• 36.2 Device Address
• 36.3 Usage
• 36.4 Assembly Drawing
• 36.5 Bill of Materials
• 37. Labstick 1-16: SAA1064 7 Segment Display
• 37.1 Usage
• 37.2 Assembly Drawing
• 37.3 Bill of Materials
• 38. Appendix 1
• 38.1 Part References
• 38.2 Passive Parts
• 38.3 Semiconductors
• 39. Appendix 2
• 39.1 Additional Reading
• 40. Index