Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 4/01/2024
Public

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Document Table of Contents

5.1.3.5. Management Interface

The host processor interacts with the DMA controller logic of XGMAC core through the AXI4 manager interface and supports the following features:

  • 400 MHz AMBA* AXI system clock (aclk_i)
  • Up to 64-bit wide interface with little-endian, 40-bit wide address bus
  • AXI manager bus ID width is 5
  • Support for up to 4 burst requests for read and write operations for each DMA channel
  • Support for 32 maximum number of outstanding read or write requests on the AXI interface

The APB3 agent interface is supported to provide access to the CSR space. The CSR interface provides a facility for the host processor to provision and monitor the core through the EMAC’s memory-mapped register set and supports the following features:

  • Support for 32-bit data transfer
  • All register access are completed in less than five clock cycles
  • Synchronous to clock: l4_sp_clk