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

ID 683364
Date 12/15/2018
Public
Document Table of Contents

3.10.3. Width Adaptation

Platform Designer allows different data width connections with APB. When connecting a wider master to a narrower APB slave, the width adapter converts the wider transactions to a narrower transaction to fit the APB slave data width. APB does not support Write Strobe. Therefore, when you connect a narrower transaction to a wider APB slave, the slave cannot determine which byte lane to write. In this case, the slave data may be overwritten or corrupted.