Next generation Intel® micro-architecture (Nehalem) clocking architecture

Abstract

This paper describes the Next generation Intel® micro-architecture (Nehalem) 45nm IA processor's Core and I/O clocking architecture. Among the highlights are: configurable clocking, fast-lock low-skew PLLs, high reference clock frequencies, analog supply tracking system, adaptive frequency clocking, low jitter Intel® QuickPath interconnect and Intel® QuickPath memory controller clock generation, and jitter-attenuating DLLs. © 2008 IEEE.