pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 78

• Manufacturer Part Number: pxf4336
• Description: Abm Premium Atm Buf Fer Manager
• Manufacturer: Infineon Technologies Corporation

ELSE
IF
THEN
ELSE
LastCellOfPacket =
3.4.1.7.3 PPD Algorithm
If the PPD algorithm is applied, the last cell of a corrupted packet should be accepted.
IF
THEN
IF
THEN
ELSE
3.4.1.7.4 Hysteresis Algorithm
For any threshold TH:Delta(TH) = TH - TH/2**[DH + 1] with DH in 1..7
FillBelowHyst =
IF
THEN
IF
THEN
ELSE
3.4.1.7.5 Overall Cell Acceptance Algorithm
The overall decision whether an arriving cell is buffered is based on the results of the
previous algorithms. The arriving cell can only be accepted if all algorithms would accept
the cell and if buffer space is available. To obtain the overall decision whether a correctly
received cell is finally buffered the following algorithm applies:
Data Sheet
THEN DiscardPacket = TRUE
ELSE DiscardPacket = FALSE
Do nothing
EPDen AND UserToUserCell AND DiscardPacket
CellAcceptedByEPD = FALSE
CellAcceptedByEPD = TRUE
PPDen AND UserToUserCell AND EndOfPacket
DiscardRestOfPacket = FALSE
PPDen AND UserToUserCell AND DiscardRestOfPacket
CellAcceptedByPPD = FALSE
CellAcceptedByPPD = TRUE
UserToUserCell AND (PPDen = FALSE) AND FillBelowHyst
DiscardRestOfPacket = FALSE
UserToUserCell AND (PPDen = FALSE) AND DiscardRestOfPacket
CellAcceptedByHyst = FALSE
CellAcceptedByHyst = TRUE
ExceedEpdCLP1
UserToUserCell AND EndOfPacket
(ExceedMinBG = FALSE) OR (DH = 0) OR [
(BufferOccNg < Delta(BufMaxNg)) AND
((SBOccNg < Delta(SBMax)) OR (QID = 0)) AND
(TrafClassOccNg < Delta(TrafClassMax)) AND
(QueueLength >= Delta(QueueMax)) ]
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Functional Description
PXF 4336 V1.1
2001-12-17
ABM-P