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RTL8111D-VB-GR Datasheet(PDF) 23 Page - Realtek Semiconductor Corp. |
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RTL8111D-VB-GR Datasheet(HTML) 23 Page - Realtek Semiconductor Corp. |
23 / 45 page RTL8111D(L)/RTL8111D(L)-VB Datasheet Integrated Gigabit Ethernet Controller for PCI Express 16 Track ID: JATR-2265-11 Rev. 1.8 If EEPROM D3c_support_PME = 0: • If aux. power exists, then PMC in PCI config space is the same as EEPROM PMC (if EEPROM PMC = C3 7F, then PCI PMC = C3 7F) • If aux. power is absent, then PMC in PCI config space is the same as EEPROM PMC except the above 4 bits are all 0’s (if EEPROM PMC = C3 7F, then PCI PMC = 03 7E) In the above case, if wakeup support is not desired when main power is off, it is suggested that the EEPROM PMC be set to 03 7E. Magic Packet Wakeup occurs only when the following conditions are met: • The destination address of the received Magic Packet is acceptable to the RTL8111D(L)/RTL8111D(L)-VB, e.g., a broadcast, multicast, or unicast packet addressed to the current RTL8111D(L)/RTL8111D(L)-VB. • The received Magic Packet does not contain a CRC error. • The Magic bit (CONFIG3#5) is set to 1, the PMEn bit (CONFIG1#0) is set to 1, and the corresponding wake-up method (message, beacon, or LANWAKEB) can be asserted in the current power state. • The Magic Packet pattern matches, i.e., 6 * FFh + MISC (can be none) + 16 * DID (Destination ID) in any part of a valid Ethernet packet. A Wakeup Frame event occurs only when the following conditions are met: • The destination address of the received Wakeup Frame is acceptable to the RTL8111D(L)/RTL8111D(L)-VB, e.g., a broadcast, multicast, or unicast address to the current RTL8111D(L)/RTL8111D(L)-VB. • The received Wakeup Frame does not contain a CRC error. • The PMEn bit (CONFIG1#0) is set to 1. • The 16-bit CRCA of the received Wakeup Frame matches the 16-bit CRC of the sample Wakeup Frame pattern given by the local machine’s OS. Or, the RTL8111D(L)/RTL8111D(L)-VB is configured to allow direct packet wakeup, e.g., a broadcast, multicast, or unicast network packet. Note: 16-bit CRC: The RTL8111D(L)/RTL8111D(L)-VB supports eight long wakeup frames (covering 128 mask bytes from offset 0 to 127 of any incoming network packet). |
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