EP80579 Datasheet, PDF (1058/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
27.3.3.2 Offset 02h: PM1_EN - Power Management 1 Enables Register
Table 27-12. Offset 02h: PM1_EN - Power Management 1 Enables Register
Description:
View: PCI
Size: 16 bit
BAR: PMBASE (IO)
Default: 0000h
Bus:Device:Function: 0:31:0
Offset Start: 02h
Offset End: 02h
Power Well: Core^a
Bit Range
15
14
13 11
10
Bit Acronym
Bit Description
Sticky
Reserved
Reserved
Reserved
RTC_EN
Reserved
Reserved
Reserved
This is the RTC alarm enable bit. It works in conjunction
with the SCI_EN bit:
RTC_EN SCI_EN Effect when RTC_STS is set
0
x
No SMI# or SCI. If system was in
S1,S3,S4 or S5, no wake event
occurs.
1
0
SMI#. If system was in S1,S3,S4 or
S5, then a wake event occurs
before the SMI#.
1
1
SCI. If system was in S1, S3, S4 or
S5, then a wake event occurs
before the SMI#.
Bit Reset
Value
0h
0h
0h
0h
Bit Access
RW
09
08
07 : 06
05
04 : 01
00
Reserved Reserved
PWRBTN_EN
This bit is the power button enable. It works in
conjunction with the SCI_EN bit:
PWRBTN_EN
SCI_EN Effect when PWRBTN_STS
is set
0
x
No SMI# or SCI
1
0
SMI#
1
1
SCI
Note: PWRBTN_EN has no effect on the PWRBTN_STS
bit being set by the assertion of the power
button. The Power Button is always enabled as
a Wake event.
Reserved Reserved
GBL_EN
The global enable bit. When both the GBL_EN and the
GBL_STS are set, an SCI is generated.
0 = Disable.
1 = Enable SCI on GBL_STS going active.
Reserved Reserved
TMROF_EN
This is the timer overflow interrupt enable bit. It works
in conjunction with the SCI_EN bit:
TMROF_EN SCI_EN Effect when TMROF_STS is set
0
x
No SMI# or SCI. If system was
in S1, S3, S4 or S5, no wake
event.
1
0
SMI#. If system was in S1,S3,
S4,S5, then a wake event
occurs before the SMI#.
1
1
SCI. If system was in S1,S3,S4
or S5, then a wake event occurs
before the SMI#.
a. Bits 0-7: Core, Bits 8-15: Resume
0h
0h
RW
0h
0h
RW
0h
0h
RW
Intel^® EP80579 Integrated Processor Product Line Datasheet
1058
August 2009
Order Number: 320066-003US