AMD主板上电时序控制芯片IT8282M资料.doc

《AMD主板上电时序控制芯片IT8282M资料.doc》由会员分享，可在线阅读，更多相关《AMD主板上电时序控制芯片IT8282M资料.doc（4页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、-作者xxxx-日期xxxxAMD主板上电时序控制芯片IT8282M资料【精品文档】AMD主板上电时序控制芯片IT8282M资料管理提醒: 本帖被 阿宇 从 台式电脑主板电路图纸 移动到本区(2010-04-09) -IT8282M在主板上多用来控制AMD主板的上电时序，包括PSON，VDDA_EN，VLDT_EN,VCORE_EN,VDIMM_STR_EN等信号 （此帖转载自 url= （此帖转载自 url= Pin(s) No.SymbolAttributeDescription1VCORE_GDDIVCORE Power Good （此帖转载自 url= Active high. Thi

2、s signal indicates that the power-good signal is fromthe PWM controller for CPU core voltage. 2VLDT_12AIVLDT(1.2V) analoginputs.3VDDA_25AIVLDT(2.5V) analoginputs.4VDIMM_STRAIVDIMM DUAL STR(2.5V)analoginputs.5SB_PSON#DISouth Bridge PSON# （此帖转载自 url= SB_PSON#:Active low. This signal is connected to th

3、e PSON# signal from the south-bridgeor Super I/O to control the on/off of ATX powersupply （此帖转载自 url= 6ACPI_S3DIA GPIO pin from S/B （此帖转载自 url= Active high. This signal indicates that the system is in ACPI S3 state （此帖转载自 url= 7ATX_PWRGDDIATX Power-Good / GND （此帖转载自 url= ATX_PWRGD : Active high. inp

4、ut indicates that ATX power supply power-good is ready （此帖转载自 url= 8GNDPWRGround9ATX_PSON#DIOD8ATX Power PSON# （此帖转载自 url= ATX_PSON#: Acitve low. The function of this pin is ATX Power Supply On/Off （此帖转载自 url= 10RSTBTN#DIReset Button input （此帖转载自 url= RSTBTN# :Active low. The function of this pin is

5、 panel reset button input with de-bounce circuit. （此帖转载自 url= 11CPU_PWRGDDOD16CPU Power-Good （此帖转载自 url= Active high. Output indicates that CPU power-good is ready. （此帖转载自 url= The external pull high resistor is required （此帖转载自 url= 12VDIMM_STR_ENDOD8VDIMM STR Enable （此帖转载自 url= Active high. The fun

6、ction of this pin is to enable the PWM for VDIMM_STR dual voltage.The external pull high resistor is required （此帖转载自 url= 13VCORE_ENDOD8VCORE Enable （此帖转载自 url= Active high. The function of this pin is to enable the PWM forCPU VCORE. The external pull high resistor is required （此帖转载自 url= 14VDDA_END

7、OD8VDDA Enable （此帖转载自 url= Active high. The function of this pin is to enable the PWM forVDDApower for k8 CPU. The external pull high resistor is required （此帖转载自 url= 15VLDT_ENDOD8VLDT Enable （此帖转载自 url= Active high. The function of this pin is to enable the PWM for VLDT voltage.The external pull high resistor is required （此帖转载自 url= 165VSBPWR+5V Standby Power SupplyIT8282M在主板上多用来控制AMD主板的上电时序，包括PSON，VDDA_EN，VLDT_EN,VCORE_EN,VDIMM_STR_EN等信号 （此帖转载自 url= （此帖转载自 url= 【精品文档】