FW82801EB Intel, FW82801EB Datasheet - Page 401

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FW82801EB

Manufacturer Part Number
FW82801EB
Description
Manufacturer
Intel
Datasheet

Specifications of FW82801EB

Lead Free Status / RoHS Status
Not Compliant

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9.10.13
Intel
®
82801EB ICH5 / 82801ER ICH5R Datasheet
Note: Software clears bits that are set in this register by writing a 1 to the bit position.
DEVACT_STS — Device Activity Status Register
I/O Address:
Default Value:
Lockable:
Power Well:
This register is used in conjunction with the Periodic SMI# timer to detect any system activity for
legacy power management.
15:13
11:10
Bit
12
9
8
7
6
5
4
3
2
1
0
Reserved
KBC_ACT_STS — R/WC. KBC (60/64h).
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
Reserved
PIRQDH_ACT_STS — R/WC. PIRQ[D or H].
0 = The corresponding PCI interrupts have not been active.
1 = At least one of the corresponding PCI interrupts has been active. Clear this bit by writing a 1 to
PIRQCG_ACT_STS — R/WC. PIRQ[C or G].
0 = The corresponding PCI interrupts have not been active.
1 = At least one of the corresponding PCI interrupts has been active. Clear this bit by writing a 1 to
PIRQBF_ACT_STS — R/WC. PIRQ[B or F].
0 = The corresponding PCI interrupts have not been active.
1 = At least one of the corresponding PCI interrupts has been active. Clear this bit by writing a 1 to
PIRQAE_ACT_STS — R/WC. PIRQ[A or E].
0 = The corresponding PCI interrupts have not been active.
1 = At least one of the corresponding PCI interrupts has been active. Clear this bit by writing a 1 to
LEG_ACT_STS — R/WC. Parallel Port, Serial Port 1, Serial Port 2, Floppy Disk controller.
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
Reserved
IDES1_ACT_STS — R/WC. IDE Secondary Drive 1.
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
IDES0_ACT_STS — R/WC. IDE Secondary Drive 0.
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
IDEP1_ACT_STS — R/WC. IDE Primary Drive 1.
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
IDEP0_ACT_STS — R/WC. IDE Primary Drive 0.
0 = Indicates that there has been no access to this device’s I/O range.
1 = This device’s I/O range has been accessed. Clear this bit by writing a 1 to the bit location.
the bit location.
the bit location.
the bit location.
the bit location.
PMBASE +44h
0000h
No
Core
Description
LPC Interface Bridge Registers (D31:F0)
Attribute:
Size:
Usage:
R/WC
16-bit
Legacy Only
401

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