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针对 DDR5 串行存在检测 (SPD) 的多通道I3C 总线解码

串行存在检测(SPD)是一种自动获取 DDR3/4/5 内存模块信息的标准方法. 当一个系统接通电源时,它会通过识别不同的硬件组件开始自动配置系统。 串行存在检测(SPD)是 DDR3/4/5 中的一项功能,可使电子系统了解 DDR 内存的详细信息及其定时信息。 DDR3/4 内存模块使用 SM bus提供这个信息。 对于最新的超高速内存,DDR5 使用低压信号(1V)I3C 接口来读取内存详细信息及其定时信息。 Fig 1. 基于 DDR5 的系统设计中的典型 I3C 总线架构 典型的 I3C 总线结构如图 1 所示. 当主机控制器使用串行存在检测 –...

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