參數(shù)資料
型號(hào)： AXDA1700DLV3C
元件分類： 微處理器
英文描述： Microprocessor
中文描述： 微處理器
文件頁(yè)數(shù)： 88/104頁(yè)
文件大?。?/td> 1769K
代理商： AXDA1700DLV3C
76
Pin Descriptions
Chapter 11
AMD Athlon XP Processor Model 8 Data Sheet
25175E—November 2002
Preliminary Information
SADDIN[1:0]# and
SADDOUT[1:0]# Pins
The AMD Athlon XP processor model 8 does not support
SADDIN[1:0]# or SADDOUT[1:0]#. SADDIN[1]# is tied to VCC
with pullup resistors, if this bit is not supported by the
Northbridge (future models can support SADDIN[1]#).
SADDOUT[1:0]# are tied to VCC with pullup resistors if these
pins are supported by the Northbridge. For more information,
see the
AMD Athlon System Bus Specification
, order# 21902.
Scan Pins
SCANSHIFTEN, SCANCLK1, SCANINTEVAL, and SCANCLK2
are the scan interface. This interface is AMD internal and is
tied disabled with pulldown resistors to ground on the
motherboard.
SMI# Pin
SMI# is an input that causes the processor to enter the system
management mode.
STPCLK# Pin
STPCLK# is an input that causes the processor to enter a lower
power mode and issue a Stop Grant special cycle.
SYSCLK and SYSCLK#
SYSCLK and SYSCLK# are differential input clock signals
provided to the PLL of the processor from a system-clock
generator.
See “CLKIN, RSTCLK (SYSCLK) Pins” on page 71 for more
information.
THERMDA and
THERMDC Pins
Thermal Diode anode and cathode pins are used to monitor the
actual temperature of the processor die, providing more
accurate temperature control to the system.
See Table 17, “Thermal Diode Electrical Characteristics,” on
page 42 for more information.
VCCA Pin
VCCA is the processor PLL supply. For information about the
VCCA pin, see Table 5, “VCCA AC and DC Characteristics,” on
page 35 and the
AMD Athlon Processor-Based Motherboard
Design Guide
, order# 24363.
VID[4:0] Pins
The VID[4:0] (Voltage Identification) outputs are used to
dictate the V
CC_CORE
voltage level. The VID[4:0] pins are
strapped to ground or left unconnected on the processor
package. The VID[4:0] pins are pulled-up on the motherboard
and used by the V
CC_CORE
DC/DC converter.
For more information, see Table 27, “VID[4:0] Code to Voltage
Definition,” on page 77.
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