Intel 317443-001US Manual De Usuario

Intel

®

 Core

TM

 2 Duo processor with the Mobile Intel

®

 945GME Express Chipset

May 2007

Manual

Order Number: 317443-001US

 

11

“Power-Good,” “PWRGOOD,” or “CPUPWRGOOD” (an active high 

signal) indicates that all of the system power supplies and clocks 

are stable. PWRGOOD should go active a predetermined time 

after system voltages are stable and should go inactive as soon 

as any of these voltages fail their specifications.

The voltage to which a signal changes after reaching its 

maximum absolute value. Ringback may be caused by 

reflections, driver oscillations, or other transmission line 

phenomena.

The System Bus is the microprocessor bus of the processor.

The time between the beginning of Setup to Clock (TSU_MIN) 

and the arrival of a valid clock edge. This window may be 

different for each type of bus agent in the system. 

Simultaneous Switching Output (SSO) effects are differences in 

electrical timing parameters and degradation in signal quality 

caused by multiple signal outputs simultaneously switching 

voltage levels in the opposite direction from a single signal or in 

the same direction. These are called odd mode and even mode 

switching, respectively. This simultaneous switching of multiple 

outputs creates higher current swings that may cause additional 

propagation delay (“push-out”) or a decrease in propagation 

delay (“pull-in”). These SSO effects may impact the setup and/

or hold times and are not always taken into account by 

simulations. System timing budgets should include margin for 

SSO effects.

The branch from the bus trunk terminating at the pad of an 

agent.

The main connection, excluding interconnect branches, from 

one end 

A two-wire interface through which various system components 

may communicate.

The minimum voltage extending below VSS observed for a 

signal at the device pad.

V

CC

 (CPU core) is the core power for the processor. The system 

bus is terminated to V

CC

 (CPU core).

A network that receives a coupled crosstalk signal from another 

network is called the victim network.

 defines the acronyms used throughout this document.

AC

Audio Codec

ACPI

Advanced Configuration and Power Interface

AGTL

Assisted Gunning Transceiver Logic

AMC

Audio/Modem Codec.

ASF

Alert Standard Format

AMI

American Megatrends Inc. (BIOS developer)