AMD 8 manual Signal and Power-Up Requirements, Preliminary Information, Chapter

Preliminary Information

25175H —March 2003 AMD Athlon™ XP Processor Model 8 Data Sheet

9 Signal and Power-Up Requirements

The AMD Athlon™ XP processor model 8 is designed to provide functional operation if the voltage and temperature parameters are within the limits of normal operating ranges.

9.1Power-Up Requirements

Signal Sequence and Timing Description

3.3 V Supply

VCCA (2.5 V)

(for PLL)

VCC_CORE

RESET#

NB_RESET#

PWROK

FID[3:0]

System Clock

Figure 13 shows the relationship between key signals in the system during a power-up sequence. This figure details the requirements of the processor.

2
1	6		Warm reset
			condition
	4
5
		8
7

3

Figure 13. Signal Relationship Requirements During Power-Up Sequence

Notes: 1. Figure 13 represents several signals generically by using names not necessarily consistent with any pin lists or schematics.

2.Requirements 1–8 in Figure 13 are described in “Power-Up Timing Requirements” on page 46.

Chapter 9 Signal and Power-Up Requirements 45