The AMBA AXI protocol supports high-performance, high-frequency system designs. The AXI protocol: • is suitable for high-bandwidth and low-latency designs • provides high-frequency operation without using complex bridges • meets the interface requir
This preface introduces the AMBA AXI and ACE Protocol Specification. It contains the following sections: • About this specification on page x • Using this specification on page xi • Conventions on page xiii • Additional reading on page xv • Feedback
USB 1.1 主机控制器
此 IP 内核是一个切断的 USB 主机控制器,允许与全速 (12mbps) USB 设备通信。
IP 通过 AXI4-Lite 从机登记接口访问,用于控制、状态和数据。
要发送或接收的数据存储在某些内部 FIFO中。数据通过 AXI4-Lite 从访问。没有与此 IP 关联的 DMA 。
核心功能很好,非常小,但在执行 USB 传输所需的 CPU 周期方面效率相当低。