Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 10/25/2023
Document Table of Contents

6.6.1. Ping Pong PHY IP

The Ping Pong PHY IP allows two memory interfaces to share address/command buses using time multiplexing. The Ping Pong PHY IP gives you the advantage of using less pins compared to two independent interfaces, without any impact on throughput.

Figure 125. Ping Pong PHY 1T TimingWith the Ping Pong PHY, address and command signals from two independent controllers are multiplexed onto shared buses by delaying one of the controller outputs by one full-rate clock cycle. The result is 1T timing, with a new command being issued on each full-rate clock cycle.