摘要：SPI Overview System Architecture: Single-master Multi-slave Serial bus. Address space: no limitation Operation modes: 60 Mbpsmax at 60MHz for conventi 阅读全文

摘要：Ref: https://www.cnblogs.com/xianyuIC/p/17279209.html Introduction APB是最简单的AMBA总线，功耗很低，它多用于低速外围设备和访问寄存器。相比AHB和AXI，有几个很不一样的点： 最快只能背靠背（back to back）传输，至 阅读全文