I2C总线接口电路设计及VLSI实现 摘要：本文提出了一个从模式的IC总线接口电路设计，该接口电路实现了对变参数ASIC 器芯片的配置。此设计使得可配置的ASIC芯片中参数配置所需要的芯片管脚大大减少。该 方案现以通过行为仿真、综合后门级时序仿真，并且在无锡上华0.6umCM0S工艺上实现。 本文还提出了一个主从模式混合的I℃总线接口控制电路设计，该接口电路即可以配置为主 模式又可以配置为从模式，和微处理器配合可以很好的实现I℃总线协议。该方案现以通过 行为仿真、综合后门级时序仿真 关键词：IC总线接口电路、从模式、主从模式混合、VHDL、VLSI 目录 1前言 2 2I2℃总线的基本原理 4 3从模式的I2C总线接口的电路结构设计 8 3.1系统结构 8 3.2主状态机 9 3.3子模块 10 4主从模式混合的I2℃总线接口的电路结构设计 12 4.1系统结构 -12 4.1.1设计目标 12 4.1.2系统框图 13 4.22℃总线控制器子模块 13 4.2.1总体设计思路 13 4.2.2状态机 -13 4.2.2.1SCL状态机 13 4.2.2.2主状态机 15 4.2.3各子模块 -16 4.3微处理器接口模块 18 5测试验证 -20 5.1从模式的I2℃总线接口电路的测试 20 5.2主从模式混合的I2℃总线接口电路的测试 21 6LSI实现 24 7结论 24 1


   


  
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