EP80579 Datasheet, PDF (1853/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Figure 49-17.Differential Clock Waveform
Tph
Tpl
PEA_CLKn
Threshold
Region
PEA_CLKp
Crossing
Voltage
Crossing
Voltage
Tp
Ringback
Margin
Overshoot
VH
Rising
Edge
Ringback
Falling
Edge
Ringback
VL
Undershoot
Tp = T1: PEA_CLK period
T2: PEA_CLK period stability (not shown)
Tph = T3: PEA_CLK pulse high time
Tpl = T4: PEA_CLK pulse low time
T5: PEA_CLK rise time through the threshold region
T6: PEA_CLK fall time through the threshold region
B6568-01
Figure 49-18.Differential Clock Cross-Point Specification
650
600
550
500
550 + 0.5 (VHavg – 710)
450
550 mV
400
250 + 0.5 (VHavg – 710)
350
300
250
250 mV
200
660 670 680 690 700 710 720 730 740 750 760 770 780 790 800 810 820 830 840 850
VHavg (mV)
B6569-01
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
1853