各种pg的意思

会员663520 · 发表于 2013-4-5 13:28:24

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本帖最后由百亿超市于 2013-4-5 23:33 编辑

intel 平台会有各种PG信号。PG有时是复位，有时是触发，有时是使能。这些PG信号貌似告诉我们硬件系统的power on sequence。
APWROK，CL_PWROK，DPWROK，PWROK，VRMPWRGD，VDDPWRGOOD，VTTPWRGOOD，CK_PWRGD，DRAMPWROK，VCCPWRGOOD，SM_DRAMPWROK，PROCPWRGD，UNCOREPWRGOOD，SYS_PWROK，CPUPWRGD，TAPPWRGOOD，PWRGOOD。

会员663520 · 发表于 2013-4-19 18:59:36

VccSPI This rail must be powered when VccASW is powered.

会员743736 · 发表于 2013-4-5 13:30:28

楼主再给个中文解释啊，英文看不懂啊。

会员663520 · 发表于 2013-4-5 23:07:09

本帖最后由百亿超市于 2013-4-5 23:34 编辑

笔记本的单桥和双桥的PWROK信号的含义应该是一致的。但是单桥复位前多了个SYS_PWROK。这个信号暗示另一个系统已经准备好。

会员663520 · 发表于 2013-4-5 23:13:50

本帖最后由百亿超市于 2013-4-5 23:20 编辑

笔记本的单桥的DRAMPWROK和PROCPWRGD分别暗示了VDDPWRGOOD，VTTPWRGOOD等。
笔记本的双桥的VRMPWRGD暗示了VCCPWRGOOD，引起了CK_PWRGD。

会员198814 · 发表于 2013-4-6 13:55:36

看看...............................................

会员663520 · 发表于 2013-4-19 18:53:12

Active Sleep Well 时序
SLP_A# Could already be high before this sequence begins (to support M3), but will never go high later than SLP_S3#
SLP_LAN# Could already be high before this sequence begins (to support WOL), but will never go high later than SLP_S3# or SLP_A#
VccASW Provides power to the Intel® ME and integrated LAN.
APWROK may come up earlier than PWROK, but no later

会员663520 · 发表于 2013-4-19 19:34:41

PCH Deep Sx Well
This state provides a few wake events and critical context to allow system to draw minimal power in S4 or S5 states. the Suspend wells are powered off
ACPRESENT PWRBTN# DSWVRMEN
时序
SLP_SUS#
VccDSW3_3 If platform does not support Deep Sx then tie to VccSus3_3.
DPWROK

会员663520 · 发表于 2013-4-19 19:42:32

本帖最后由百亿超市于 2013-4-19 19:48 编辑

PCH power on
RTC well                G3

Deep Sx Well          DSx

Suspend Well          S5  S4  S3

Active Sleep Well    SLP_A# No Later Than S3 Power Rail May come up with S0

Core Well                S0

各种pg的意思

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