Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 4/01/2024
Public
Document Table of Contents

11.6.2. HPS-to-FPGA Bridge Clocks and Resets

The initiator interface into the FPGA fabric operates in the hps2fpga_axi_clock clock domain. The responder interface of the bridge in the HPS logic operates in the l3_main_clk clock domain. The bridge provides clock crossing logic that allows the logic in the FPGA to operate in any clock domain, asynchronous from the HPS. The H2F bridge has one reset signal, hps2fpga_axi_reset. The reset manager asserts this signal to the H2F bridge on a cold or warm reset.