SMSC LAN9311 Manuale Utente

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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
441
Revision 1.4 (08-19-08)
DATASHEET
 
6:3
Drop Reason A
When bit 0 is set, these bits indicate the reason a packet was dropped. See 
the Drop Reason B description above for definitions of each value of this 
field.
RC
0h
2:1
Source port A
When bit 0 is set, these bits indicate the source port on which the packet 
was dropped.
00 = Port 0
01 = Port 1
10 = Port 2
11 = RESERVED
RC
00b
0
Set A Valid
When set, bits 6:1 are valid.
RC
0b
BITS
DESCRIPTION
TYPE
DEFAULT