Intel Pentium M 730 RH80536GE0252M User Manual

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Various scenarios have been simulated to generate a set of AGTL+ layout guidelines which are 
available in the Mobile Intel

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Platform Design Guide. 

 provides the signal quality specifications for all processor signals for use in 

simulating signal quality at the processor core silicon (pads). 

Mobile Intel Pentium 4 Processor-M maximum allowable overshoot and undershoot specifications 
for a given duration of time are detailed in 

 through 

 shows the system 

bus ringback tolerance for low-to-high transitions and 

 shows ringback tolerance for 

high-to-low transitions. 

1. All signal integrity specifications are measured at the processor silicon (pads).
2. Unless otherwise noted, all specifications in this table apply to all Mobile Intel Pentium 4 Processor-M 

frequencies.

3. Specifications are for the edge rate of 0.3 - 4.0 V/ns. 
4. All values specified by design characterization.
5. Please see 

 for maximum allowable overshoot.

6. Ringback between GTLREF + 10% and GTLREF - 10% is not supported.
7. Intel recommends simulations not exceed a ringback value of GTLREF +/- 200

 

mV to allow margin for other 

sources of system noise.

Crossing

Voltage

Threshold

Region

VH

VL

Overshoot

Undershoot

Ringback

Margin

 Rising Edge

Ringback

 Falling Edge

Ringback,

BCLK0

BCLK1

Crossing

Voltage

All Signals 

0 

→

     1

GTLREF + 10%

V

1,2,3,4,5,6,7

All Signals 

1 

→

     0

GTLREF - 10%

V

1,2,3,4,5,6,7