Intel 317443-001US Benutzerhandbuch

Intel

®

 Core

TM

 2 Duo processor with the Mobile Intel

®

 945GME Express Chipset

Manual

May 2007

10

 

Order Number: 317443-001US

needed to ensure the setup time of the receiver. More precisely, 

flight time is defined as:

• The time difference between a signal at the input pin of a 

receiving agent crossing the switching voltage (adjusted to 

meet the receiver manufacturer’s conditions required for 

AC timing specifications; i.e., ringback, etc.) and the output 

pin of the driving agent crossing the switching voltage 

when the driver is driving a test load used to specify the 

driver’s AC timings.

• Maximum and Minimum Flight Time - Flight time variations 

are caused by many different parameters. The more 

obvious causes include variation of the board dielectric 

constant, changes in load condition, crosstalk, power noise, 

variation in termination resistance, and differences in I/O 

buffer performance as a function of temperature, voltage, 

and manufacturing process. Some less obvious causes 

include effects of Simultaneous Switching Output (SSO) 

and packaging effects.

• Maximum flight time is the largest acceptable flight time a 

network will experience under all conditions.

• Minimum flight time is the smallest acceptable flight time a 

network will experience under all conditions.

Infrared Data Assoc. The Infrared Data Association (IrDA) has outlined a specification 

for serial communication between two devices via a bi-

directional infrared data port. The 945GME platform has such a 

port and it is located on the rear of the platform between the two 

USB connectors.

The Intel Mobile Voltage Positioning specification for the Intel

®

 

Core™ 2 Duo Processor. It is a DC-DC converter module that 

supplies the required voltage and current to a single processor.

Inter-symbol interference is the effect of a previous signal (or 

transition) on the interconnect delay. For example, when a 

signal is transmitted down a line and the reflections due to the 

transition have not completely dissipated, the following data 

transition launched onto the bus is affected. ISI is dependent 

upon frequency, time delay of the line, and the reflection 

coefficient at the driver and receiver. ISI may impact both timing 

and signal integrity.

The Media Expansion Card (MEC) provides digital display options 

through the SDVO interface. The MEC card also incorporates 

video-in.

The network is the trace of a Printed Circuit Board (PCB) that 

completes an electrical connection between two or more 

components.

The maximum voltage observed for a signal at the device pad, 

measured with respect to VCC.

The electrical contact point of a semiconductor die to the 

package substrate. A pad is only observable in simulations.

The contact point of a component package to the traces on a 

substrate, such as the motherboard. Signal quality and timings 

may be measured at the pin.