IBM PowerPC 405GP User Manual page 544

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