Cyclone® V Hard Processor System Technical Reference Manual

ID 683126
Date 8/28/2023
Public
Document Table of Contents

10.4.1. Functional Description

The ACP slave supports up to six masters. However, custom peripherals implemented in the FPGA fabric can have a larger number of masters that need to access the ACP slave. The ACP ID mapper allows these masters to access the ACP.

The ACP ID mapper resides between the interconnect and the ACP slave of the MPU subsystem. It has the following characteristics:

  • Support for up to six concurrent ID mappings
  • 1 GB coherent window into 4 GB Arm* Cortex* -A9 MPCore* address space
  • Remaps the 5‑bit user sideband signals used by the Snoop Control Unit (SCU) and L2 cache