16:31
Reserved
19.7.5 Receive Mode Register (EMACO_RMR)
The EMACO_RMR defines EMAC operating modes during receive operations.
SP
RRP
Rap
PPP
PM
ME
MIAE MAE
* * * * * * *
t t t t t t
SFCS RFP RPIR PME IAE
BAE
3
1
1
Figure 19-19. Receive Mode Register (EMACO_RMR)
0 SP Strip Padding
o Do not strip pad bytes from the received
packet.
1 Strip pad/FCS bytes from the received
packet.
1
SFCS Strip FCS
o Do not strip FCS bytes from the received
packet.
1 Strip
FCS bytes from the received
packet.
2
RRP
Receive Runt Packets
o Discard packets less than 64 bytes in
length.
1 Receive packets less than 64 bytes in
length.
3 RFP
Allow
Receive Packets with a FCS Error
o Discard packets containing a FCS error.
1 Receive packets containing a FCS error.
4
Rap
Receive Oversize Packet
o Discard packets that activate Packet Is
Too Long error.
1 Receive packets that activate
Packet Is
Too Long error.
S RPIR
Receive Packets with
In
Range Error
o Discard packets that activate
In
Range
Error.
1 Receive packets that activate
In
Range
Error.
6
PPP
Propagate Pause Packet
o Do
not
propagate incoming pause packet
to MAL; remove packet from
FIFO.
1 Propagate incoming pause packet to
MAL.
Preliminary
Ethernet Media Access Controller 19-29
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