Intel® Arria® 10 Hard Processor System Technical Reference Manual

ID 683711
Date 8/28/2023
Public
Document Table of Contents

29.1.1. FPGA-to-HPS Bridge

Interface Name

Description

Associated Clock Interface

f2h_axi_slave

FPGA-to-HPS AXI slave interface

f2h_axi_clock

The FPGA-to-HPS interface is a configurable data width AXI slave allowing FPGA masters to issue transactions to the HPS. This interface allows the FPGA fabric to access the majority of the HPS slaves. This interface also provides a coherent memory interface.

Other interface standards in the FPGA fabric, such as connecting to Avalon® Memory-Mapped (Avalon-MM) interfaces, can be supported through the use of soft logic adapters. The Platform Designer (Standard) system integration tool automatically generates adapter logic to connect AXI to Avalon-MM interfaces.

The FPGA-to-HPS interface is an AXI-3 compliant interface with the following features:

  • Configurable data width: 32, 64, or 128 bits
  • Ready latency support data widths: 32, 64, or 128 bits