System Bus Signal Quality Specifications
Table 33. Asynchronous GTL+, PWRGOOD Input, and TAP Signal Groups Overshoot/
Undershoot Tolerance
Absolute
Maximum
Overshoot
(V)
Absolute
Maximum
Undershoot
(V)
Pulse
Pulse
Pulse
Duration (ns) Duration (ns) Duration (ns)
Notes 1,2
AF = 1
AF = 0.1
AF = 0.01
1.700
1.650
1.600
1.550
1.500
1.450
1.400
1.350
-0.400
-0.350
-0.300
-0.250
-0.200
-0.150
-0.100
-0.050
1.26
2.88
12.6
28.8
60.00
60.00
60.00
60.00
60.00
60.00
60.00
60.00
6.30
60.00
60.00
60.00
60.00
60.00
60.00
14.28
60.00
60.00
60.00
60.00
NOTES:
1. These specifications are measured at the processor core silicon.
2. BCLK period is 10 ns.
Figure 30. Maximum Acceptable Overshoot/Undershoot Waveform
Maximum
Absolute
Overshoot
Time-dependent
Overshoot
VMAX
VCC
GTLREF
VOL
VSS
VMIN
Time-dependent
Undershoot
Maximum
Absolute
Undershoot
Mobile Intel Pentium 4 Processor-M Datasheet
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