參數(shù)資料
型號(hào)： BX80557E2140
廠(chǎng)商： INTEL CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： MICROPROCESSOR, PBGA775
封裝： LGA-775
文件頁(yè)數(shù)： 90/107頁(yè)
文件大?。?/td> 1474K
代理商： BX80557E2140
Datasheet
83
Thermal Specifications and Design Considerations
5.4
Platform Environment Control Interface (PECI)
5.4.1
Introduction
PECI offers an interface for thermal monitoring of Intel processor and chipset
components. It uses a single wire, thus alleviating routing congestion issues. Figure 19
shows an example of the PECI topology in a system. PECI uses CRC checking on the
host side to ensure reliable transfers between the host and client devices. Also, data
transfer speeds across the PECI interface are negotiable within a wide range (2 Kbps to
2 Mbps). The PECI interface on the processor is disabled by default and must be
enabled through BIOS.
5.4.1.1
Key Difference with Legacy Diode-Based Thermal Management
Fan speed control solutions based on PECI uses a TCONTROL value stored in the
processor IA32_TEMPERATURE_TARGET MSR. The TCONTROL MSR uses the same offset
temperature format as PECI though it contains no sign bit. Thermal management
devices should infer the TCONTROL value as negative. Thermal management algorithms
should use the relative temperature value delivered over PECI in conjunction with the
TCONTROL MSR value to control or optimize fan speeds. Figure 20 shows a conceptual
fan control diagram using PECI temperatures.
The relative temperature value reported over PECI represents the delta below the onset
of thermal control circuit (TCC) activation as indicated by PROCHOT# assertions. As the
temperature approaches TCC activation, the PECI value approaches zero. TCC activates
at a PECI count of zero.
Figure 19.
Processor PECI Topology
PECI Host
Controller
Land G5
30
h
Domain 0
相關(guān)PDF資料
PDF描述
BXM80526B600128 64-BIT, 600 MHz, MICROPROCESSOR, PBGA495
BXM80526B700128 64-BIT, 700 MHz, MICROPROCESSOR, CPGA495
BXM80526B700 64-BIT, 700 MHz, MICROPROCESSOR, CPGA495
BXM80536GC2100F 32-BIT, 2100 MHz, MICROPROCESSOR, CPGA478
BXM80536GC1800F 32-BIT, 1800 MHz, MICROPROCESSOR, CPGA478
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BX80557E2160 S LA8Z 制造商:Intel 功能描述:
BX80557E4400 制造商:Intel 功能描述:MPU Core?2 Duo Processor E4400 65nm 2GHz 775-Pin FCLGA6
BX80557E4500 S LA95 制造商:Intel 功能描述:MPU Core?2 Duo Processor E4500 65nm 2.2GHz 775-Pin FCLGA6
BX80557E4600 S LA94 制造商:Intel 功能描述:MPU Core?2 Duo Processor E4600 65nm 2.4GHz 775-Pin FCLGA6
BX80557E6300 制造商:Rochester Electronics LLC 功能描述: 制造商:Intel 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠(chǎng)商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*