AN 502: Implementing SMBus Controller in Altera MAX Series

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ID 683635
Date 9/22/2014
Public
Document Table of Contents
Document Table of Contents x
1. Implementing SMBus Controller in Altera MAX Series
1. Implementing SMBus Controller in Altera MAX Series x
1.1. Using a MAX II Device as an SMBus Controller 1.2. Acknowledgments 1.3. Document Revision History
1.1. Using a MAX II Device as an SMBus Controller x
1.1.1. Data Transfer on SMBus 1.1.2. Host Interface 1.1.3. Communicating with the SMBus Controller
1.1.2. Host Interface x
1.1.2.1. Interface Signals 1.1.2.2. Registers 1.1.2.3. Address Register 1.1.2.4. Data Register 1.1.2.5. Status Register
1.1.3. Communicating with the SMBus Controller x
1.1.3.1. Using the Status Register 1.1.3.2. IRQ Signal 1.1.3.3. BUSY Signal
1. Implementing SMBus Controller in Altera MAX Series

1. Implementing SMBus Controller in Altera MAX Series

This design example shows the implementation of System Management Bus (SMBus) controller for Altera® MAX® II, MAX V, and MAX 10 devices.

SMBus, a derivative of I2C, is a two-wire interface which various system components can communicate with each other. At any time, only one device can master the bus to conduct transactions with one or multiple slaves.

With SMBus you can:

  • use an SMBus as a control bus for system and power management related tasks
  • remove individual control lines because an SMBus can be used to communicate with multiple devices

With this setup, you can reduce pin count and ensures future expansion of your design.


Section Content
Using a MAX II Device as an SMBus Controller
Acknowledgments
Document Revision History

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