LU82551ER 860613 Intel, LU82551ER 860613 Datasheet - Page 58

• Manufacturer Part Number: LU82551ER 860613
• Manufacturer: Intel

Specifications of LU82551ER 860613

• Lead Free Status / Rohs Status: Supplier Unconfirmed

82551ER — Networking Silicon
7.1.20
50
Table 17. Power Management Capability Register
Table 18. Power Management Control and Status Register
Power Management Control/Status Register (PMCSR)
The Power Management Control/Status is a word register. It is used to determine and change the
current power state of the 82551ER and control the power management interrupts in a standard
manner.
20
19
18:16
15
14:13
12:9
8
7:5
4
3:2
1:0
Bits
Bits
0b (PCI)
0b
010b
0b
0b
0b
0b
0b
0b
0b
0b
Default
Default
Read Only
Read Only
Read Only
Read/Clear
Read Only
Read Only
Read Clear
Read Only
Read Only
Read Only
Read/Write
Read/Write
Read/Write
Reserved PCI.
PME# Clock. The 82551ER does not require a clock to generate a
power management event.
Version. A value of 010b indicates that the 82551ER complies with of
the PCI Power Management Specification, Revision 2.2.
PME# Status. This bit is set upon a wake-up event. It is independent
of the state of the PME# Enable bit. If 1b is written to this bit, the bit will
be cleared. It also de-asserts the PME# signal and clears the PME#
status bit in the Power Management Driver Register. When the PME#
signal is enabled, the PME# signal reflects the state of the PME status
bit.
Data Scale. This field indicates the data register scaling factor. It
equals 1b for registers zero through eight and 0b for registers 9
through 15.
Data Select. This field is used to select which data is reported through
the Data register and Data Scale field.
PME Enable. This bit enables the 82551ER to assert PME#.
Reserved . These bits are reserved and should be set to 0b.
Dynamic Data. The 82551ER does not support the ability to monitor
the power consumption dynamically.
Reserved. These bits are reserved and should be set to 0b.
Power State. This 2-bit field is used to determine the current power
state of the 82551ER and to set the 82551ER into a new power state.
The definition of the field values is as follows.
00 - D0
01 - D1
10 - D2
11 - D3
Description
Description
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