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EP2S130F1020I4 Datasheet, PDF (251/768 Pages) List of Unclassifed Manufacturers – Stratix II Device Handbook, Volume 1 | |||
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Contents
Chapter Revision Dates ........................................................................... xi
About this Handbook ............................................................................. xiii
How to Contact Altera .......................................................................................................................... xiii
Typographic Conventions .................................................................................................................... xiii
Section I. Clock Management
Revision History ....................................................................................................................... Section Iâ1
Chapter 1. PLLs in Stratix II and Stratix II GX Devices
Introduction ............................................................................................................................................ 1â1
Enhanced PLLs ....................................................................................................................................... 1â5
Enhanced PLL Hardware Overview ............................................................................................. 1â5
Enhanced PLL Software Overview ................................................................................................ 1â9
Enhanced PLL Pins ........................................................................................................................ 1â12
Fast PLLs ............................................................................................................................................... 1â15
Fast PLL Hardware Overview ..................................................................................................... 1â15
Fast PLL Software Overview ........................................................................................................ 1â16
Fast PLL Pins ................................................................................................................................... 1â18
Clock Feedback Modes ....................................................................................................................... 1â20
Source-Synchronous Mode ........................................................................................................... 1â20
No Compensation Mode ............................................................................................................... 1â21
Normal Mode .................................................................................................................................. 1â22
Zero Delay Buffer Mode ................................................................................................................ 1â23
External Feedback Mode ............................................................................................................... 1â24
Hardware Features .............................................................................................................................. 1â25
Clock Multiplication and Division .............................................................................................. 1â26
Phase-Shift Implementation ......................................................................................................... 1â27
Programmable Duty Cycle ........................................................................................................... 1â29
Advanced Clear and Enable Control ........................................................................................... 1â29
Advanced Features .............................................................................................................................. 1â32
Counter Cascading ......................................................................................................................... 1â32
Clock Switchover ............................................................................................................................ 1â33
Reconfigurable Bandwidth ................................................................................................................ 1â44
PLL Reconfiguration ........................................................................................................................... 1â51
Spread-Spectrum Clocking ................................................................................................................ 1â51
Board Layout ........................................................................................................................................ 1â56
VCCA and GNDA ............................................................................................................................ 1â56
Altera Corporation
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