參數(shù)資料
型號: 24707_PUB
英文描述: Programmable Resolution 1-Wire Digital Thermometer
中文描述: 時鐘發(fā)生器規(guī)格的AMD Athlon? 64和AMD Opteron?處理器
文件頁數(shù): 23/51頁
文件大小: 1783K
代理商: 24707_PUB
24707 Rev. 3.08 September 2003
Clock Generator Specification for AMD64 Processors
Chapter 5
Pin Locations and Descriptions
Table 3 contains the pin descriptions for the Clock Generator
.
Table 3. Pin Locations and Descriptions
Name
Pin
No. of
Pins
Type
Pin Description
X1
3
1
I
Crystal Connection or External Reference:
Reference crystal input or external reference clock
input. This pin should include an internal 36-pF load
capacitance to eliminate the need for external load
capacitance.
Crystal Connection:
Reference crystal feedback.
This output should include an internal 36-pF load
capacitance to eliminate the need for external load
capacitance.
Processor Clock Outputs 1 and 0:
Processor
push-pull “True” clock outputs of the differential pair.
Requires external termination.
Processor Clock Outputs 1 and 0:
Processor
push-pull “Complimentary” clock outputs of the
differential pair. Requires external termination.
3.3V Free-Running PCI Clock Output:
The
free-running PCI clock pin operates at 33-MHz. The
free-running PCI clock is not turned off when
PCISTOP33_L is activated Low.
3.3V PCI Clock Outputs:
PCI clocks operate at 33
MHz.
X2
4
1
O
CPUT[1:0]
41
37
2
O
CPUC[1:0]
40
36
2
O
PCI33_F
23
1
O
PCI33[5:0]
13
14
17
18
21
22
7
8
11
6
O
PCI33_HT66[2:0]
3
O
3.3V PCI 33 MHz or HyperTransport Link
66 MHz Outputs:
This group of outputs is selectable
between 33 MHz and 66 MHz based upon the state of
PCI33_HT66SEL_L. When running 66 MHz, these
outputs are for use as reference clocks to
HyperTransport technology-based devices.
Chapter 5
Pin Locations and Descriptions
19
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