參數(shù)資料
型號(hào)： SDC2800DUT3D
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： 2000 MHz, MICROPROCESSOR, CPGA453
封裝： OPGA-453
文件頁(yè)數(shù)： 87/102頁(yè)
文件大?。?/td> 3049K
代理商： SDC2800DUT3D
Chapter 10
Pin Descriptions
73
31994A—1August 2004
AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet
PWROK Pin
The PWROK input to the processor must not be asserted until
all voltage planes in the system are within specification and all
system clocks are running within specification.
For more information, Chapter 8, “Signal and Power-Up
SADDIN[1:0]# and
SADDOUT[1:0]# Pins
The AMD Sempron processor model 10 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 AM D Athlo n and AMD Du ron System Bu s
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.
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.
page 35 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.
To prevent damage to the processor, do not pull this signal High
above 2.5 V. Do not expose this pin to a differential voltage
greater than 1.60 V, relative to the processor core voltage.
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