Datasheet

Intel® Xeon® Processor 3500 Series Datasheet Volume 1 11
Introduction
• Unit Interval (UI) — Signaling convention that is binary and unidirectional. In
this binary signaling, one bit is sent for every edge of the forwarded clock, whether
it is a rising edge or a falling edge. If a number of edges are collected at instances
t
1
, t
2
, t
n
,...., t
k
then the UI at instance “n” is defined as:
UI
n
= t
n
– t
n – 1
• Jitter — Any timing variation of a transition edge or edges from the defined Unit
Interval.
• Storage Conditions — Refers to a non-operational state. The processor may be
installed in a platform, in a tray, or loose. Processors may be sealed in packaging or
exposed to free air. Under these conditions, processor lands should not be
connected to any supply voltages, have any I/Os biased, or receive any clocks.
• OEM — Original Equipment Manufacturer.
1.2 References
Material and concepts available in the following documents may be beneficial when
reading this document.
Note:
1. Document is available publicly at http://www.intel.com.
§
Table 1-1. References
Document Reference # Notes
Intel® Xeon® Processor 3500 Series Specification Update 321333 1
Intel® Xeon® Processor Series Datasheet, Volume 2 321344 1
Intel® Xeon® Processor 3500 Series and LGA1366 Socket
Thermal and Mechanical Design Guide
321461 1