Chapter 8
Signal and Power-Up Requirements
43
24309E—March 2002
AMD Athlon™ XP Processor Model 6 Data Sheet
Preliminary Information
8
Signal and Power-Up Requirements
The AMD Athlon™ XP processor model 6 is designed to provide
functional operation if the voltage and temperature parameters
are within the limits of normal operating ranges.
8.1
Power-Up Requirements
Signal Sequence and
Timing Description
Figure 12 shows the relationship between key signals in the
system during a power-up sequence. This figure details the
requirements of the processor.
Figure 12. Signal Relationship Requirements During Power-Up Sequence
Note: 1.
Figure 12 represents several signals generically by using names not necessarily
consistent with any pin lists or schematics.
2.
Requirements 1–8 in Figure 12 are described in “Power-Up Timing
Requirements” on page 44.
3.3 V Supply
VCCA (2.5 V)
(for PLL)
RESET#
VCC_CORE
(Processor Core)
NB_RESET#
PWROK
System Clock
2
1
3
4
5
6
FID[3:0]
7
8
Warm reset
condition