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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08) 412 SMSC LAN9311/LAN9311i
DATASHEET
10:9 Source Port B
When bit 8 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
8
Set B Valid
When set, bits 14:9 are valid.
RC 0b
7:4
Drop Reason A
When bit 1 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
3:2
Source port A
When bit 1 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
1
Set A Valid
When set, bits 7:2 are valid.
RC 0b
0
Interrupt Pending
When set, a packet dropped event(s) is indicated.
RC 0b
BITS DESCRIPTION TYPE DEFAULT