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參數資料
| 型號： | W89C840AF |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 100/10Mbps Ethernet Controller |
| 中文描述： | 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP128 |
| 封裝： | PLASTIC, QFP-128 |
| 文件頁數： | 11/82頁 |
| 文件大?。?/td> | 918K |
| 代理商： | W89C840AF |
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W89C840AF
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11
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Publication Release Date:October 2000
Revision 1.01
3,74,85,8
8,97,103,
109,115,
120
Functional Description
Power management functions
The W89C840AF supports power management as defined in the PCI Bus Power Management
Interface Specification Rev 1.0 and Network Device Class Power Management
Reference
Specification V1.0a and ACPI Specification Rev 1.0. These three specifications define how a PCI
network device can be controlled in an Operating System Directed Power Management (OSPM)
environment.
Power management state and wake-Up events operation
A power management event (PME) is a device used to report events that might change the system’s
power state. Typically, a device uses a PME to request a change from a power savings state to the fully
operational power state. However, a device could use a PME to request a change to a lower power state.
The following two power management events for W89C840AF are defined in Network Device Class
Power Management
Reference Specification V1.0a.
Magic Packet: Magic packet is a packet composed of a sequence of specific bits pattern and is used to
notice mother board to run a wake-up process. It is consisted of the form of Destination Mac address +
Source MAC address + data + CRC.
Wake-up frame:
Wake-Up events notification
The W89C840AF can wake-up the system when it receive a frame that matches as a wake-up packet.
This packet can be configured to be one or both of the the following:
l
Magic Packet (see Magic Packet).
l
The received wake-up frame matches one of the W89C840AF active address filtering and CRC
check mechanisms.
The W89C840AF can be enabled to provided wake-up notification upon the occurrence of a PME. The
system software enables the PMEB signal (pin 118) by setting the PME_EN bit in the Power Management
Control and Status Register (FPMCSR) and clear this bit deassert the PMEB signal. When a wake-up event
is detected, the W89C840AF sets the PME_STS bit in the FPMCSR register setting this bit causes the PMEB
signal to be asserted. Assertion of the PMEB signal causes external hardware to be wake up the system.
If there is not any power supplying PCI slot and W89C840AF, the PMEB signal will stay at low when
W89C840AF adapter card is inserted into PCI slot.
The W89C840AF detects the network for receipt of Magic Packet and wake-up frame can be enabled to
generate a wake-up notification by setting the MGPE and WUPFE bit of Wake-Up Control and Status
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W89C840F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN NODE CONTROLLER |
| W89C841D | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3-IN - 1 10/100M FAST ETHERNET CONTROLLER |
| W89C841F | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3-IN - 1 10/100M FAST ETHERNET CONTROLLER |
| W89C841F/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:3-IN-1 100BASE-TX/FX & 10BASE-T Ethernet Controller |
| W89C880F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Hub Controller |
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