User guide
© 2010 Ingenieurbüro Für Ic-Technologie Page 62
Filter Details MAC-IP
MAC-IP filter:
Each device has to have it's own MAC-IP, which has to be loaded into the GMACII-core by software this IP
can be fixed, or received from a DHCP-server depending on the systems structure.
The MAC-IP filter decodes the Destination IP Address and compares to the loaded value.
If all 32 bit match, the received frame is accepted.
Additionally a Destination Address of "FF FF FF FF" is accepted as broadcast.
MCMAC-IP filter for Multicast (Advanced Features ON):
For receiving multicast frames we have an additional filter set. This filter works
in parallel to the MAC-IP filter, so we can receive both kinds of destination IPs
Additionally a Destination Address of “Exxxx.XX.XX.XX" is accepted as multicast-broadcast.
224.0.0.0 … 239.255.255.255