RapidIO II Intel® FPGA IP User Guide

ID 683444
Date 9/28/2020
Document Table of Contents Input/Output Avalon-MM Slave Module

The Input/Output (I/O) Avalon-MM slave Logical layer module is an optional component of the I/O Logical layer. The I/O Avalon-MM slave Logical layer module receives Avalon-MM transactions from user logic and converts these transactions to RapidIO read and write request packets. The module sends the RapidIO packets to the Transport layer, to be sent on the RapidIO link. For each RapidIO read or write request, the target remote RapidIO processing element implements the actual read or write transaction and sends back a response if required. Avalon-MM read transactions complete when the RapidIO II IP core receives and processes the corresponding response packet.
  • The I/O Avalon-MM slave module is referred to as a slave module because it is an Avalon-MM interface slave.
  • The maximum number of outstanding transactions (I/O Requests) the RapidIO II IP core supports on this interface is 16 (8 NREAD requests + 8 NWRITE_R requests).
Figure 16. Input/Output Avalon-MM Slave Logical Layer Block Diagram