PIC18F97J60_11 Datasheet, PDF (264/492 Pages) Microchip Technology – 64/80/100-Pin, High-Performance, 1-Mbit Flash Microcontrollers with Ethernet

PIC18F97J60 FAMILY
19.8.6 MAGIC PACKET FILTER
The Magic Packet pattern consists of a sync pattern of
6 FFh bytes, followed by 16 repeats of the destination
address (Figure 19-16). The Magic Packet filter checks
the destination address and data fields of all incoming
packets. If the destination address matches the
MAADR registers and the data field holds a valid Magic
Packet pattern someplace within it, then the packet will
meet the Magic Packet filter criteria.
FIGURE 19-16: SAMPLE MAGIC PACKET™ FORMAT
Received
Data
00 11 22 33 44 55
77 88 99 AA BB CC
00 FE
09 0A 0B 0C 0D 0E
FF FF FF FF FF 00
FF FF FF FF FF FF
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
00 11 22 33 44 55
19 1A 1B 1C 1D 1E
EF 54 32 10
Field
DA
SA
Type/Length
Header
Comments
Destination MAC Address
Source MAC Address
Optional Application Data
or Protocol Header
Sync Pattern
Magic
Packet
Pattern
16 Repeats of the
Destination MAC Address
Footer
FCS
Optional Application Data or Protocol Footer
DS39762F-page 264
 2011 Microchip Technology Inc.