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ENC28J60T-C/SP датащи(PDF) 50 Page - Microchip Technology |
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ENC28J60T-C/SP датащи(HTML) 50 Page - Microchip Technology |
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50 / 96 page ![]() ENC28J60 DS39662B-page 48 Preliminary © 2006 Microchip Technology Inc. REGISTER 8-1: ERXFCON: ETHERNET RECEIVE FILTER CONTROL REGISTER R/W-1 R/W-0 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0 R/W-1 UCEN ANDOR CRCEN PMEN MPEN HTEN MCEN BCEN bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7 UCEN: Unicast Filter Enable bit When ANDOR = 1: 1 = Packets not having a destination address matching the local MAC address will be discarded 0 = Filter disabled When ANDOR = 0: 1 = Packets with a destination address matching the local MAC address will be accepted 0 = Filter disabled bit 6 ANDOR: AND/OR Filter Select bit 1 = AND: Packets will be rejected unless all enabled filters accept the packet 0 = OR: Packets will be accepted unless all enabled filters reject the packet bit 5 CRCEN: Post-Filter CRC Check Enable bit 1 = All packets with an invalid CRC will be discarded 0 = The CRC validity will be ignored bit 4 PMEN: Pattern Match Filter Enable bit When ANDOR = 1: 1 = Packets must meet the Pattern Match criteria or they will be discarded 0 = Filter disabled When ANDOR = 0: 1 = Packets which meet the Pattern Match criteria will be accepted 0 = Filter disabled bit 3 MPEN: Magic Packet Filter Enable bit When ANDOR = 1: 1 = Packets must be Magic Packets for the local MAC address or they will be discarded 0 = Filter disabled When ANDOR = 0: 1 = Magic Packets for the local MAC address will be accepted 0 = Filter disabled bit 2 HTEN: Hash Table Filter Enable bit When ANDOR = 1: 1 = Packets must meet the Hash Table criteria or they will be discarded 0 = Filter disabled When ANDOR = 0: 1 = Packets which meet the Hash Table criteria will be accepted 0 = Filter disabled bit 1 MCEN: Multicast Filter Enable bit When ANDOR = 1: 1 = Packets must have the Least Significant bit set in the destination address or they will be discarded 0 = Filter disabled When ANDOR = 0: 1 = Packets which have the Least Significant bit set in the destination address will be accepted 0 = Filter disabled bit 0 BCEN: Broadcast Filter Enable bit When ANDOR = 1: 1 = Packets must have a destination address of FF-FF-FF-FF-FF-FF or they will be discarded 0 = Filter disabled When ANDOR = 0: 1 = Packets which have a destination address of FF-FF-FF-FF-FF-FF will be accepted 0 = Filter disabled |
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