FW82801EB Intel, FW82801EB Datasheet - Page 388
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FW82801EB
Manufacturer Part Number
FW82801EB
Description
Manufacturer
Intel
Datasheet
1.FW82801EB.pdf
(671 pages)
Specifications of FW82801EB
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LPC Interface Bridge Registers (D31:F0)
9.10.2
388
PM1_EN—Power Management 1 Enable Register
I/O Address:
Default Value:
Lockable:
Power Well:
15:11
7:6
4:1
Bit
10
9
8
5
0
Reserved
RTC Event Enable (RTC_EN) — R/W. This bit is in the RTC well to allow an RTC event to wake
after a power failure. This bit is not cleared by any reset other than RTCRST# or a Power Button
Override event.
0 = No SCI (or SMI#) or wake event is generated then RTC_STS goes active.
1 = An SCI (or SMI#) or wake event will occur when this bit is set and the RTC_STS bit goes
Reserved.
Power Button Enable (PWRBTN_EN) — R/W. This bit is used to enable the setting of the
PWRBTN_STS bit to generate a power management event (SMI#, SCI). 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.
0 = Disable
1 = Enable
Reserved.
Global Enable (GBL_EN) — R/W. When both the GBL_EN and the GBL_STS are set, an SCI is
raised.
0 = Disable
1 = Enable SCI on GBL_STS going active.
Reserved.
Timer Overflow Interrupt Enable (TMROF_EN) — R/W. Works in conjunction with the SCI_EN bit
as described below:
TMROF_EN SCI_EN
active.
0
1
1
PMBASE + 02h
( ACPI PM1a_EVT_BLK + 2 )
0000h
No
Bits 0
Bits 8
Bit 10: RTC
–
–
x
0
1
7: Core,
9, 11
–
15: Resume,
Effect when TMROF_STS is set
No SMI# or SCI
SMI#
SCI
Description
Intel
Attribute:
Size:
Usage:
®
82801EB ICH5 / 82801ER ICH5R Datasheet
R/W
16-bit
ACPI or Legacy
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