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Chapter 8
Electrical Data
31
25175E—November 2002
AMD Athlon XP Processor Model 8 Data Sheet
Preliminary Information
8
Electrical Data
This chapter describes the electrical characteristics that apply
to all desktop AMD Athlon XP processors model 8.
8.1
Conventions
The conventions used in this chapter are as follows:
■
Current specified as being sourced by the processor is
negative
.
Current specified as being sunk by the processor is
positive
.
■
8.2
Interface Signal Groupings
The electrical data in this chapter is presented separately for
each signal group.
Table 8 defines each group and the signals contained in each
group.
Table 8.
Interface Signal Groupings
Signal Group
Signals
Notes
AMD Athlon
System Bus
SADDIN[14:2]#, SADDOUT[14:2]#, SADDINCLK#, SADDOUTCLK#,
SFILLVAL#, SDATAINVAL#, SDATAOUTVAL#, SDATA[63:0]#,
SDATAINCLK[3:0]#, SDATAOUTCLK[3:0]#, CLKFWDRST, PROCRDY,
CONNECT
See “Advanced 266 FSB
AMD Athlon System Bus AC
Characteristics” on page 25,
“Advanced 333 FSB AMD Athlon
System Bus AC Characteristics” on
page 29, “AMD Athlon System
Bus DC Characteristics” on page 36,
and “CLKFWDRST Pin” on page 71.
See “APIC Pins AC and DC
Characteristics” on page 44, and
“APIC Pins, PICCLK, PICD[1:0]#” on
page 71.
See “Frequency Identification
(FID[3:0])” on page 33, “FID[3:0]
Pins” on page 73, and
“FSB_Sense[1:0] Pins” on page 74.
See “General AC and DC
Characteristics” on page 39.
APIC
PICD[1:0]#, PICCLK
Frequency
FID[3:0], FSB_Sense[1:0]
JTAG
TMS, TCK, TRST#, TDI, TDO