SC92031L SILAN [Silan Microelectronics Joint-stock], SC92031L Datasheet - Page 29

• Manufacturer Part Number: SC92031L
• Description: 10/100 MBPS INTEGRATED PCI ETHERNET MEDIA ACCESS CONTROLLER AND PHYSICAL LAYER
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

(Continued)
PCI Power Management functions
Power Management Rev 1.1, and Device Class Power Management Reference Specification V1.0a, such as to
support OS Directed Power Management (OSPM) environment.
device needs the system to return to a normal operating state to service a wake event. This document details the
hardware operation of the family of devices. Software operation (i.e. drivers or operating systems) should comply
with this document.
of saving power. The SC92031 supports power states D0, D1, D2, D3hot, and D3cold as defined in the PCI
Power Management Specification.
Magic Packet Received and Link Status Changed.
Configuration Register. If the device detects a wake event while in Power Management mode, it will assert the
PMEB pin low to signal the system that a wake event has occurred and the device requires service. The system
should then bring the device out of Power Management mode.
wake-up process whenever the chip receives a wakeup event, such as Magic Packet.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
35h-
40h-
3Bh
3Ch
3Dh
3Eh
FFh
No.
34h
3Fh
The SC92031 supports power management mechanism, it complies with the ACPI Specification Rev 1.1, PCI
These features allow a PCI device to save power when programmed to do so, and to signal the system that the
The Power Management Specification presents a low-level hardware interface to PCI devices for the purpose
In PCI Power Management mode, three Wake-up events are supported, including Wake-up Frame Received,
When the PME Enable bit is set to 1, incoming packets are filtered based on settings in the Receive
The chip also supports LAN WAKE-UP function. The LWAKE pin is used to notify the motherboard to execute
Reserved (All 0)
Reserved (All 0)
Cap_Ptr
MNGNT
MXLAT
Name
IPR
ILR
Type
R/W
R
R
R
R
Bit7
Ptr7
0
0
0
0
Bit6
Ptr6
0
0
0
0
Bit5
Ptr5
0
0
1
1
Bit4
Ptr4
0
0
0
0
Bit3
Ptr3
0
0
0
0
Bit2
Ptr2
0
0
0
0
REV:1.0
Bit1
Ptr1
0
0
0
0
SC92031
Page 29 of 38
2004.08.03
Bit0
Ptr0
0
1
0
0