PIC18F97J60 Datasheet, PDF (248/474 Pages) Microchip Technology – 64/80/100-Pin, High-Performance, 1 Mbit Flash Microcontrollers with Ethernet

PIC18F97J60 FAMILY
REGISTER 18-21: ERXFCON: ETHERNET RECEIVE FILTER CONTROL REGISTER
R/W-1
UCEN
bit 7
R/W-0
ANDOR
R/W-1
CRCEN
R/W-0
PMEN
R/W-0
MPEN
R/W-0
HTEN
R/W-0
MCEN
R/W-1
BCEN
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘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
DS39762A-page 246
Advance Information
© 2006 Microchip Technology Inc.