AXI-Lite bus is an AXI bus that only supports a single ID thread per initiator. This bus is typically used for an end point that only needs to communicate with a single initiator device at a time, for example, a simple peripheral such as a UART.

The AXI4-Lite interface allows access to the high-bandwidth memory controller's control and status registers. The AXI4-Lite interface is intended primarily for use in relatively low bandwidth sideband operations.

Xilinx Vivado helps in the creation of custom IP with AXI4 interfaces. These can be connected to the Zynq’s Proccessing System or to other devices. This Document will cover the operation of the AXI4-Lite interface, which is convenient for implementing memory mapped registers.

AXI4-Lite: For simple, low-throughput memory-mapped communication (for example, to and from control and status registers). AXI4-Stream: For high-speed streaming data.

2023年4月18日 · AXI4-Lite接口为外设提供单个数据传输，主要用于访问一些低速外设中的寄存器。 而 AXI -Steam接口则向FIFO一样，数据传输时不需要地址，在主从设备之间直接连续读写数据，主要用于如视频、高速AD、 PCIe 、DMA接口等需要高速数据传输的场合。

The LogiCORE™ IP AXI4-Lite IP Interface (IPIF) is a part of the AMD family of Arm® AMBA® AXI control interface compatible products. It provides a point-to-point bidirectional interface between a user IP core and the LogiCORE IP AXI Interconnect core.

This repository contains the implementation of AXI4-Lite interface protocol on system verilog for FPGA/ASIC communication. Modular codebase with example designs and testbench.

The AXI protocol includes the optional extensions that cover signaling for low-power operation. The AXI protocol includes the AXI4-Lite specification, a subset of AXI4 for communication with simpler control register style interfaces within components.

The AXI4 slave interface follows the AXI4 memory-mapped slave protocol specification as described in the ArmAMBA open specifications. See this specification for the signaling details of the AXI4 slave interface. Read from a register that does not have all 0s as a default to verify that the interface is functional.

See ARM publications on page viii for the specifications that describe the AXI4, AXI4-Lite, and AXI4-Stream signals. Tie the low-power interface signals of the AXI interface HIGH if you are not using them.