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

ID 683777
Date 2/15/2023
Public
Document Table of Contents

2.2.7. Address Clock Enable Support

You can use the address clock enable feature to improve the effectiveness of cache memory applications during a cache-miss. If you configure M9K memory blocks in dual-port mode, each port has its own independent address clock enable.

By default, the address clock enable signal, addressstall, is disabled and the signal is active low. While the addressstall signal is high (addressstall = 1), the address register holds the previous address value.

Figure 9. Address Clock Enable Block DiagramIn this diagram, the address register output feeds back to its input using a multiplexer. The addressstall signal selects the multiplexer output.
Figure 10. Address Clock Enable Waveform During Read Cycle
Figure 11. Address Clock Enable Waveform During Write Cycle