欢迎访问ic37.com |
会员登录 免费注册
发布采购

253668 参数 Datasheet PDF下载

253668图片预览
型号: 253668
PDF下载: 下载PDF文件 查看货源
内容描述: 双核英特尔​​®至强®处理器 [Dual-Core Intel Xeon Processor]
分类和应用:
文件页数/大小: 104 页 / 3687 K
品牌: INTEL [ INTEL ]
 浏览型号253668的Datasheet PDF文件第74页浏览型号253668的Datasheet PDF文件第75页浏览型号253668的Datasheet PDF文件第76页浏览型号253668的Datasheet PDF文件第77页浏览型号253668的Datasheet PDF文件第79页浏览型号253668的Datasheet PDF文件第80页浏览型号253668的Datasheet PDF文件第81页浏览型号253668的Datasheet PDF文件第82页  
Thermal Specifications  
the system tries to enable On-Demand mode at the same time the TCC is engaged, the  
factory configured duty cycle of the TCC will override the duty cycle selected by the On-  
Demand mode.  
6.2.3  
PROCHOT# Signal  
An external signal, PROCHOT# (processor hot) is asserted when the processor die  
temperature has reached its factory configured trip point. If Thermal Monitor is enabled  
(note that Thermal Monitor must be enabled for the processor to be operating within  
specification), the TCC will be active when PROCHOT# is asserted. The processor can  
be configured to generate an interrupt upon the assertion or de-assertion of  
PROCHOT#. Refer to the Intel Architecture Software Developer’s Manual for specific  
register and programming details.  
PROCHOT# is designed to assert at or a few degrees higher than maximum TCASE (as  
specified by Thermal Profile A) when dissipating TDP power and cannot be interpreted  
as an indication of processor case temperature. This temperature delta accounts for  
processor package, lifetime and manufacturing variations and attempts to ensure the  
Thermal Control Circuit is not activated below maximum TCASE when dissipating TDP  
power. There is no defined or fixed correlation between the PROCHOT# trip  
temperature, the case temperature or the thermal diode temperature. Thermal  
solutions must be designed to the processor specifications and cannot be adjusted  
based on experimental measurements of TCASE, PROCHOT#, or Tdiode on random  
processor samples.  
6.2.4  
FORCEPR# Signal  
The FORCEPR# (force power reduction) input can be used by the platform to cause the  
Dual-Core Intel Xeon Processor 5000 series to activate the TCC. If the Thermal Monitor  
is enabled, the TCC will be activated upon the assertion of the FORCEPR# signal.  
Assertion of the FORCEPR# signal will activate TCC for both processor cores. The TCC  
will remain active until the system deasserts FORCEPR#. FORCEPR# is an  
asynchronous input. FORCEPR# can be used to thermally protect other system  
components. To use the VR as an example, when FORCEPR# is asserted, the TCC  
circuit in the processor will activate, reducing the current consumption of the processor  
and the corresponding temperature of the VR.  
It should be noted that assertion of FORCEPR# does not automatically assert  
PROCHOT#. As mentioned previously, the PROCHOT# signal is asserted when a high  
temperature situation is detected. A minimum pulse width of 500 µs is recommended  
when FORCEPR# is asserted by the system. Sustained activation of the FORCEPR#  
signal may cause noticeable platform performance degradation. Refer to the  
appropriate platform design guidelines for details on implementing the FORCEPR#  
signal feature.  
6.2.5  
THERMTRIP# Signal  
Regardless of whether or not Thermal Monitor is enabled, in the event of a catastrophic  
cooling failure, the processor will automatically shut down when the silicon has reached  
an elevated temperature (refer to the THERMTRIP# definition in Table 5-1). At this  
point, the FSB signal THERMTRIP# will go active and stay active as described in  
Table 5-1. THERMTRIP# activation is independent of processor activity and does not  
generate any bus cycles. Intel also recommends the removal of VTT.  
78  
Dual-Core Intel® Xeon® Processor 5000 Series Datasheet  
 复制成功!