Mobile Intel Pentium 4 Processor - M and Intel 845MP/MZ Chipset Platform Design Guide

Mobile Intel
®
Pentium
®
4 Processor-M and Intel
®
845MP/845MZ Chipset Platform
70 Design Guide
R
Figure 30. Command Signal to SCK/SCK# Trace Length Matching Requirements
SO-DIMM0
MCH-M
= Motherboard
SMA[12:0],
SBS[1:0],
RAS#, CAS#,
WE#
SCK[2:0]
SCK#[2:0]
Note: CMD Lengths are measured from MCH-M
pins to SO-DIMM0 connector pins
(X - 3.0") < = (CMD Length) = <
( X - 1.0" )
SCK/SCK#[2:0]
Length = X
SO-DIMM0
SO-DIMM1
MCH-M
= Motherboard
SCK[5:3]
SCK#[5:3]
(X - 3.0") < = (CMD Length) = <
( X - 1.0" )
SCK/SCK#[5:3]
Length = X
Note: CMD Lengths are measured from MCH-M
pins to SO-DIMM1 connector pins
SMA[12:0],
SBS
[
1:0
]
,
RAS#, CAS#, WE#