EP80579 Datasheet, PDF (1066/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 27-17. Offset 28h: GPE0_STS - General Purpose Event 0 Status Register (Sheet 4 of
4)
Description:
View: PCI
BAR: PMBASE (IO)
Bus:Device:Function: 0:31:0
Offset Start: 28h
Offset End: 28h
Size: 32 bit
Default: 00000000h
Power Well: Resume
Bit Range
06
05
04
Bit Acronym
Bit Description
Sticky
TCOSCI_STS
0 = TCO logic did Not cause SCI.
1 = Set by hardware when the TCO logic causes an
SCI.
This bit can be reset by writing a one to this bit position.
Reserved Reserved
Reserved
Reserved
Bit Reset
Value
0h
0h
0h
Bit Access
RWC
0 = USB UHCI controller 1 does Not need to cause a
wake.
1 = Set by hardware when USB UHCI controller 1 needs
to cause a wake. Wake event will be generated if
the corresponding USB1_EN bit is set.
03
USB1_STS
This bit is only set by hardware and can be reset by
writing a one to this bit position or a resume-well reset.
0h
RWC
Note: There is no support for wake from USB when in
S3/S4/S5.
02
Reserved Reserved.
01
Reserved Reserved
0 = PROCHOT# signal Not driven active as defined by
the PROCHOT_POL bit
1 = Set by hardware anytime the PROCHOT# signal is
driven active as defined by the PROCHOT_POL bit.
00
PROCHOT_STS
Additionally, if the PROCHOT_EN bit is set, then the
setting of the PROCHOT_STS bit will also generate
a power management event (SCI or SMI#).
This bit is cleared by S/W writing a one to this bit
position or a resume-well reset.
0h
0h
0h
RWC
27.3.3.8
Note:
Offset 2Ch: PMBASE_GPE0_EN - General Purpose Event 0 Enables
Register
This register is symmetrical to the General Purpose Event 0 Status Register. All the bits
in this register must be cleared to 0 based on a Power Button Override-CPU Thermal
Trip event, or internal thermal sensor catastrophic condition. Unless otherwise noted,
all bits are in the resume well. The Resume well bits are all cleared by RSMRST# and
RTC well bits are cleared by RTEST#.
Intel^® EP80579 Integrated Processor Product Line Datasheet
1066
August 2009
Order Number: 320066-003US