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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： | 12/82頁 |
| 文件大小： | 918K |
| 代理商： | W89C840AF |
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W89C840AF
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12
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Publication Release Date:October 2000
Revision 1.01
Register (FWUPCS) and it should be ensure the PME_EN bit is set only when the W89C840AF is in the D3
state.
Below table describes the Wake-Up, Power Management Control and Status registers with EEPROM
bits that control the PMEB
signal.
Bit
Location
Descriptin
FPMCSR<8>
PME_EN
PCI configuration
space
PME_EN---Power management enable bit set enables the
assertion of the PMEB
signal when a PME occurs.
FPMCSR<15>
PME_STS
PCI configuration
space
PME_STS---Power management status bit is indicates that a
PME has occurred. When this bit is cleared, the PMEB
signal is
deasserted.
FCS<20>
CAPS
FWUPCS<31>
PMCSP
PCI configuration
space
CAPS---The value of this bit determines whether the
W89C840AF
implements
the
capabilities. The value of this bit is loaded from EEPROM
08H<15> bit (power management capability support).
PCI
power
management
FWUPCS<30>
RWUL
PCI configuration
space
RWUL---The value of this bit is loaded from EEPROM 08H<14>
bit (Remote wake-up from LAN). After Hard-Reset, if RWUL=1
and PMCSP=1 the W89C840AF will enable Remote Wake-Up
from LAN mode. While in Remote Wake-Up from LAN mode,
W89C840AF will assert PMEB signal if Magic Packet has been
received. The W89C840AF
PMEB
signal will remain asserted
during power state changes from D3 (hot) to D0 (un-initialized)
until either bit 15 and/or bit 8 in the FPMCSR is cleared.
FWUPCS<0>
MGPE
PCI configuration
space
MGPE---After Hard-Reset, if RWUL=1 and PMCSP=1 Magic
Packet detector enable bit set to 1 to enable the operation of
Magic Packet detector. This bit is reset when W89C840AF power
state changes from D3 (hot) to D0 (un-initialized).
Magic Packet
While in Remote Wake-Up from LAN mode, the W89C840AF is in low power state (W89C940A all
VDD and pins must remains at their supply levels). The device will not generate any bus master transfers, no
transmit operations will be initiated on the network. it require the received packet match as a Magic Packet,
after which it generates a weak-up signal.
The Magic Packet's packet matches as following rules:
1. The valid destination address that pass of the W89C840AF address filtering machine
2. The received Magic Packet does not contain CRC error.
3. Includes, anywhere in the packet with no breaks sequence of 6 bytes FFh synchronization stream
followed by 16 duplications of the destination address.
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| W89C92 | PCMCIA ETHERNET NETWORK TWISTED PAIR INTERFACE CONTROLLER |
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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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