Electrical Specifications
2.7.4
BCLK[1:0] Specifications
Table 19.
Front Side Bus Differential BCLK Specifications
Symbol
Parameter
Min
Typ
Max
Unit Notes1
VL
Input Low Voltage
Input High Voltage
-0.150
0.660
0.250
0.000
0.700
N/A
N/A
V
V
VH
0.850
0.550
2, 3
VCROSS(abs) Absolute Crossing Point
V
0.250 +
0.5(VHavg – 0.700)
0.550 +
0.5(VHavg – 0.700)
3, 4, 5
VCROSS(rel) Relative Crossing Point
N/A
N/A
V
V
Range of Crossing
∆VCROSS
N/A
0.140
Points
6
7
8
9
VOS
VUS
Overshoot
N/A
-0.300
N/A
N/A
N/A
N/A
VH + 0.3
N/A
V
V
V
V
Undershoot
VRBM
Ringback Margin
Threshold Region
0.200
N/A
VTM
VCROSS – 0.100
VCROSS + 0.100
NOTES:
1. Unless otherwise noted, all specifications in this table apply to all processor frequencies.
2. Crossing voltage is defined as the instantaneous voltage value when the rising edge of BCLK0 equals the falling edge
of BCLK1.
3. The crossing point must meet the absolute and relative crossing point specifications simultaneously.
4. V
5. V
is the statistical average of the V measured by the oscilloscope.
Havg
Havg
H
can be measured directly using “Vtop” on Agilent* oscilloscopes and “High” on Tektronix* oscilloscopes.
6. Overshoot is defined as the absolute value of the maximum voltage.
7. Undershoot is defined as the absolute value of the minimum voltage.
8. Ringback Margin is defined as the absolute voltage difference between the maximum Rising Edge Ringback and the
maximum Falling Edge Ringback.
9. Threshold Region is defined as a region entered around the crossing point voltage in which the differential receiver
switches. It includes input threshold hysteresis.
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32
Datasheet
INTEL [ INTEL ]
