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LAN9500AI データシート(PDF) 172 Page - Microchip Technology |
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LAN9500AI データシート(HTML) 172 Page - Microchip Technology |
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172 / 213 page  LAN950x DS00001875A-page 172 2010 - 2015 Microchip Technology Inc. 7.4.12 WAKEUP CONTROL AND STATUS REGISTER (WUCSR) This register contains data pertaining to the MAC’s remote wakeup status and capabilities. Address: 12Ch Size: 32 bits Bits Description Type Default 31 WFF Pointer Reset (WFF_PTR_RST) This self-clearing bit resets the Wakeup Frame Filter (WFF) internal read and write pointers to the beginning of the WFF. SC 0b 30:10 RESERVED RO - 9 Global Unicast Wakeup Enable (GUEN) When set, the MAC wakes up from power-saving mode on receipt of a global unicast frame. A global unicast frame has the MAC Address [0] bit set to 0. Note: The Wakeup Frame Enable (WUEN) bit of this register must also be set to enable wakeup. R/W 0b 8 RESERVED RO - 7 (LAN9500A/LAN9500Ai ONLY, Otherwise RESERVED) Perfect DA Frame Received (PFDA_FR) The MAC sets this bit upon receiving a valid frame with a destination address that matches the physical address. R/WC 0b 6 Remote Wakeup Frame Received (WUFR) The MAC sets this bit upon receiving a valid remote Wakeup Frame. R/WC 0b 5 Magic Packet Received (MPR) The MAC sets this bit upon receiving a valid Magic Packet. R/WC 0b 4 (LAN9500A/LAN9500Ai ONLY, Otherwise RESERVED) Broadcast Frame Received (BCAST_FR) The MAC Sets this bit upon receiving a valid broadcast frame. R/WC 0b 3 (LAN9500A/LAN9500Ai ONLY, Otherwise RESERVED) Perfect DA Wakeup Enable (PFDA_EN) When set, remote wakeup mode is enabled and the MAC is capable of waking up on receipt of a frame with a destination address that matches the physical address of the device. The physical address is stored in the MAC Address High Register (ADDRH) and MAC Address Low Register (ADDRL). R/W 0b 2 Wakeup Frame Enable (WUEN) When set, remote wakeup mode is enabled and the MAC is capable of detecting Wakeup Frames as programmed in the Wakeup Frame Filter. R/W 0b 1 Magic Packet Enable (MPEN) When set, Magic Packet wakeup mode is enabled. R/W 0b 0 (LAN9500A/LAN9500Ai ONLY, Otherwise RESERVED) Broadcast Wakeup Enable (BCAST_EN) When set, remote wakeup mode is enabled and the MAC is capable of waking up from a broadcast frame. R/W 0b |
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