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550 参数 Datasheet PDF下载

550图片预览
型号: 550
PDF下载: 下载PDF文件 查看货源
内容描述: 奔腾4处理器,支持超线程技术 [Pentium 4 Processors Supporting Hyper-Threading Technology]
分类和应用:
文件页数/大小: 96 页 / 1585 K
品牌: INTEL [ INTEL ]
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Features  
6.2.4  
Enhanced HALT Snoop or HALT Snoop State, Grant Snoop  
State  
The Enhanced HALT Snoop State is used in conjunction with the new Enhanced HALT state. If  
Enhanced HALT state is not enabled in the BIOS, the default Snoop State entered will be the  
HALT Snoop State. Refer to the sections below for details on HALT Snoop State, Grant Snoop  
State and Enhanced HALT Snoop State.  
6.2.4.1  
6.2.4.2  
HALT Snoop State, Grant Snoop State  
The processor will respond to snoop transactions on the FSB while in Stop-Grant state or in HALT  
Power Down state. During a snoop transaction, the processor enters the HALT:Grant Snoop state.  
The processor will stay in this state until the snoop on the FSB has been serviced (whether by the  
processor or another agent on the FSB). After the snoop is serviced, the processor will return to the  
Stop-Grant state or HALT Power Down state, as appropriate.  
Enhanced HALT Snoop State  
The Enhanced HALT Snoop State is the default Snoop State when the Enhanced HALT state is  
enabled via the BIOS. The processor will remain in the lower bus ratio and VID operating point of  
the Enhanced HALT state.  
While in the Enhanced HALT Snoop State, snoops are handled the same way as in the HALT  
Snoop State. After the snoop is serviced the processor will return to the Enhanced HALT Power  
Down state.  
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Datasheet  
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