RapidIO Intel FPGA IP User Guide

ID 683884
Date 9/15/2021
Public
Document Table of Contents

3.4.3. Processing Element Features

The Processing Element Features CAR identifies the major features of the processing element.

Bridge Support

Bridge support, when turned on, sets the BRIDGE bit in the Processing Element Features CAR and indicates that this processing element can bridge to another interface such as PCI Express, a proprietary processor bus such as Avalon® -MM, DRAM, or other interface.

Memory Access

Memory access, when turned on, sets the MEMORY bit in the Processing Element Features CAR and indicates that the processing element has physically addressable local address space that can be accessed as an endpoint through non-maintenance operations. This local address space may be limited to local configuration registers, or can be on-chip SRAM, or another memory device.

Processor Present

Processor present, when turned on, sets the PROCESSOR bit in the Processing Element Features CAR and indicates that the processing element physically contains a local processor such as the Nios®® II embedded processor or similar device that executes code. A device that bridges to an interface that connects to a processor should set the BRIDGE bit instead of the PROCESSOR bit.