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Datasheet – SMSC LAN9311i User Manual

Page 412

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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

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