Intel® Quartus® Prime Pro Edition User Guide: Platform Designer

ID 683609
Date 6/26/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

6.10.8. Unaligned Address Commands

Unaligned address commands are commands with addresses that do not conform to the data width of a subordinate. Since Avalon® memory mapped subordinates accept only aligned addresses, Platform Designer modifies unaligned commands from AXI managers to the correct data width. Platform Designer must preserve commands issued by AXI managers when passing the commands to AXI subordinates.
Note: Unaligned transfers are aligned if downsizing occurs. For example, when downsizing to a bus width narrower than that required by the transaction size, AWSIZE or ARSIZE, the transaction must be modified.