PM3350-SW datasheet(79/224 Pages) PMC

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ELAN 8X10

PM3350 ELAN 8 X10

DATA SHEET

PMC-970109

ISSUE 3

8 PORT ETHERNET SWITCH

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND PMC-SIERRA, INC. CUSTOMERS ONLY

PortNum:

8-bit logical port index assigned to the physical MAC channel with which this

port descriptor is associated.

MaxBuffers:

16-bit count of packet buffers that remain to be allocated to hold incoming

received frames; flow control or packet discard will be initiated when this

count goes to zero.

MulticastMask:

16-bit mask used to restrict broadcasts and multicasts received on this port to

a subset of the ports on this ELAN 8x10 and a subset of the devices in the

system.

BackoffMask:

16-bit mask used to limit the range of collision backoff values generated by

the truncated binary exponential backoff algorithm for this port. Note that only

the lower 10 bits are significant; the upper 6 bits of this field should always be

set to zero.

PortFlags:

8-bit per-port control flags.

TXFrames:

32-bit count of valid frames transmitted on this port.

TXOctets:

32-bit count of valid bytes transmitted on this port.

TXDeferred:

32-bit count of transmitted frames that experienced carrier deference during

the transmission process.

RXUcastFrames:

32-bit count of valid unicast frames received on this port.

RXUcastOctets:

32-bit count of valid bytes from unicast frames received on this port.

RXFrames64:

32-bit count of frames received on this port that were 64 bytes in size.

RXFrames65-127:

32-bit count of frames received on this port that ranged between 65 and 127

bytes in size, inclusive.

PM3350-SW Datasheet(PDF) 79 Page - PMC-Sierra, Inc