Intel SL2YM Manuel D’Utilisation
Pentium
®
II Processor at 350 MHz, 400 MHz, and 450 MHz
18
Datasheet
NOTES:
1. These resistor values are recommended for system implementations using open-drain CMOS buffers.
2. ~150
2. ~150
Ω
resistors are expected for these signals. This value may vary by system and should be correlated with the output
drive characteristics of the devices generating the input signals. Other approximate values are recommended for proper
operation with the Pentium
operation with the Pentium
®
II processor Logic Analyzer Interface.
3. TRST# must be pulled to ground via a 680
Ω
resistor or driven low at power on with the assertion of RESET# (see
Table 19
).
4. 1K
−
10K
Ω
pullup to 2.0 V (V
CC
CORE
) or, if 2.5 V ramps after core, pull up TESTHI to 2.5V (V
CC
2.5
) with a 100 k
Ω
resistor.
The groups and the signals contained within each group are shown in
Table 3
. Refer to
Section 7.0
for descriptions of these signals.
Table 2.
Recommended Pull-up Resistor Values (Approximate) for CMOS Signals
1, 2, 3
Recommended Resistor
Value (Approximate)
CMOS Signal
150
Ω
TDI, TDO, TMS, PICD[0], PICD[1]
150
Ω
– 220
Ω
FERR#, IERR#, THERMTRIP#
150
Ω
– 330
Ω
A20M#, IGNNE#, INIT#, LINT[1]/NMI, LINT[0]/INTR, PWRGOOD, SLP#, PREQ#
410
Ω
STPCLK#, SMI#
500
Ω
FLUSH#
1K
Ω
–100K
Ω
TESTHI
4