參數(shù)資料
型號: AMD ATHLON
廠商: Advanced Micro Devices, Inc.
英文描述: 32-Bit Microprocessor with 3D Multimedia Performance and Digital Video(32位微處理器帶3D多媒體性能和數(shù)字視頻)
中文描述: 32三維多媒體性能和數(shù)字視頻比特微處理器(32位微處理器帶三維多媒體性能和數(shù)字視頻)
文件頁數(shù): 39/106頁
文件大?。?/td> 1740K
代理商: AMD ATHLON
Chapter 6
Electrical Data
25
21016G/0
December 1999
AMD Athlon
Processor Data Sheet
Preliminary Information
6.3
Voltage Identification
The AMD Athlon processor provides four voltage ID lines back
to the system for proper configuration of the processor core
voltage. The processor either connects a VID to V
SS
, or has an
open value. If required by the voltage regulator, the
motherboard pulls up these four signals up to TTL levels. The
motherboard is required to pull VID[4] Low for the voltage
regulator to supply voltage in the appropriate range for the
AMD Athlon. These voltage ID values are defined in Table 7.
The pullup resistors used on the motherboard must have a value
of at least 10 k
.
Table 7.
Voltage ID Values
In addition, the AMD Athlon processor provides the VCC2SEL
signal to identify the core voltage of the L2 cache SRAMs. Like
the VID signals, the AMD Athlon either connects the VCC2SEL
to V
SS
or has an open value, with a pullup resistor on the
motherboard. An open value indicates that a voltage of 2.5V is
required for VCC_SRAM, while a Vss indicates a required
voltage of 3.3V.
VID[3] VID[2] VID[1] VID[0] VCC_CORE (V)
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
0
0
1
0
1
1
0
1
1
1
0
1
1
0
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2.05
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
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