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Pentium

II Processor at 350 MHz, 400 MHz, and 450 MHz

Datasheet

NOTES:

1. These resistor values are recommended for system implementations using open-drain CMOS buffers.
2. ~150

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

II processor Logic Analyzer Interface.

3. TRST# must be pulled to ground via a 680

resistor or driven low at power on with the assertion of RESET# (see

Table 19

4. 1K

−

10K

pullup to 2.0 V (V

CORE

) or, if 2.5 V ramps after core, pull up TESTHI to 2.5V (V

2.5

) with a 100 k

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

TDI, TDO, TMS, PICD[0], PICD[1]

150

– 220

FERR#, IERR#, THERMTRIP#

150

– 330

A20M#, IGNNE#, INIT#, LINT[1]/NMI, LINT[0]/INTR, PWRGOOD, SLP#, PREQ#

410

STPCLK#, SMI#

500

FLUSH#

–100K

TESTHI