Intel® Quartus® Prime Standard Edition User Guide: Design Optimization

ID 683230
Date 11/12/2018
Public
Document Table of Contents

3.5.4.5. Use Fast Regional Clock Networks and Regional Clocks Networks

Regional clocks provide the lowest clock delay and skew for logic contained in a single quadrant. In general, fast regional clocks have less delay to I/O elements than regional and global clocks, and are used for high fan-out control signals. Placing clocks on these low-skew and low-delay clock nets provides better tCO performance.

Intel devices have a variety of hierarchical clock structures. These include dedicated global clock networks, regional clock networks, fast regional clock networks, and periphery clock networks. The available resources differ between the various Intel device families.

For the number of clocking resources available in your target device, refer to the appropriate device handbook.

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