Volume 1 ：Chapter 4. Cyclone V器件中的时钟网络和PLL.pdf

Cyclone V器件中的时钟网络和PLL 4 2013.05.06 CV-52004 订阅 反馈 本章节介绍了Cyclone®V器件中不同结构的时钟网络与锁相环(PLL)的高级特性。Quartus® II软件不 需要外部器件来使能PLL及其功能。 相关链接 Cyclone V器件手册：已知问题 列出了对Cyclone V器件手册章节的计划更新。 时钟网络 Cyclone V器件包括具有下面层次结构的时钟网络： • 全局时钟(GCLK)网络 • 局域时钟(RCLK)网络 • 外设时钟(PCLK)网络 Cyclone V器件中的时钟资源 该时钟网络提供高达128个单一时钟域。CycloneV器件支持每个器件象限高达50个单一GCLK，RCLK 和PCLK时钟源(16 GCLKs + 22 RCLKs + 12 PCLKs [象限1和象限4]) 。 © 2013 Altera Corporation. All rights reserved. ALTERA, ARRIA, CYCLONE, HARDCOPY, MAX, MEGACORE, NIOS, QUARTUS and STRATIX words and logos are trademarks of Altera Corporation and registered in the U.S. Patent and Trademark Office and in other countries. All other words and logos identified as trademarks or service marks are the property of their respective holders as described at ISO /common/legal.html. Altera warrants performance of its semiconductor products to current specifications in accordance with 9001:2008 Alteras standard warranty, but reserves the right to make changes to any products and services at any time without notice. Altera assumes Registered no responsibility or liability arising out of the application or use of any information, product, or service described herein except as expressly agreed to in writing by Altera. Altera customers are advised to obtain the latest version of device specifications before relying on any published information and before placing orders for products or services. 101 Innovation Drive, San Jose, CA 95134 CV-52004 4-2 Cyclone V器件中的时钟资源 2013.05.06 表4-1: Cyclone V器件中的时钟资源—初步 时钟资源 器件 可用的资源数量