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T-8208-BAL-DB View Datasheet(PDF) - Agere -> LSI Corporation
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Description
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T-8208-BAL-DB
CelXpres™ ATM Interconnect
Agere -> LSI Corporation
T-8208-BAL-DB Datasheet PDF : 214 Pages
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Advance Data Sheet
September 2001
8 Look-Up Table
(continued)
This look-up procedure is outlined in the flow diagram below.
CelXpres
T8208
ATM Interconnect
CELL IN
READ VPI
FROM ATM CELL
HEADER
VCI
READ VCI
FROM ATM CELL
HEADER
UNUSED
VPI BITS ALL ‘0’
OR LUTX_VPI_CHECK
= ‘0’?
NO
CELL
DISCARDED
YES
READ VPI
RECORD
A bit = 1
AND
I bit = 0?
YES
NO
E bit = 1
AND
VCI < 32?
YES
READ VP
OAM RECORD
NO
CELL
DISCARDED
A bit = 1
AND
I bit = 0?
YES
C1 & C0
= “00” ?
NO
C1 & C0
= “10” ?
NO
P bit = 1 ?
NO
VCI
NO
CELL
DISCARDED
YES
VPI/VCI
TRANSLATION;
ROUTING FROM
OAM RECORD
YES
VPI/VCI
PRESERVED;
ROUTING FROM
OAM RECORD
YES
VPI
TRANSLATION;
ROUTING FROM
VP RECORD
VCI IN
RANGE?
YES
READ VCI
RECORD
NO
CELL
DISCARDED
A bit = 1
AND
I bit = 0?
YES
NO
E bit = 1
AND
PTI[2] = ‘1’?
YES
READ VC
OAM RECORD
NO
CELL
DISCARDED
A bit = 1
AND
I bit = 0?
NO
CELL
DISCARDED
YES
C1 & C0
= “00” ?
NO
C1 & C0
= “10” ?
YES
YES
NO
VPI/VCI
TRANSLATION;
ROUTING FROM
VC RECORD
VPI/VCI
TRANSLATION;
ROUTING FROM
OAM RECORD
VPI/VCI
PRESERVED;
ROUTING FROM
OAM RECORD
Figure 6. Translation RAM Flow Diagram
5-7781F and 5-7782F
Agere Systems Inc.
37
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