PM7324 Datasheet, PDF (357/473 Pages) PMC-Sierra, Inc – SATURN User Network Interface ATM Layer Solution

S/UNI-ATLAS
DATASHEET
PMC-1971154
ISSUE 7
PM7324 S/UNI-ATLAS
S/UNI-ATM LAYER SOLUTION
Register 0x2A2: Egress Performance Monitoring Threshold A1
Bit
Type
Function
Default
15
R/W
MERROR[3]
0
14
R/W
MERROR[2]
0
13
R/W
MERROR[1]
0
12
R/W
MERROR[0]
0
11
R/W
MLOST[11]
0
10
R/W
MLOST[11]
0
9
R/W
MLOST[9]
0
8
R/W
MLOST[8]
0
7
R/W
MLOST[7]
0
6
R/W
MLOST[6]
0
5
R/W
MLOST[5]
0
4
R/W
MLOST[4]
0
3
R/W
MLOST[3]
0
2
R/W
MLOST[2]
0
1
R/W
MLOST[1]
0
0
R/W
MLOST[0]
0
This is the first of four Threshold Registers. These threshold registers are addressed by the
Threshold_Select[1:0] field of the PM Configuration field of the Egress PM RAM data. The
threshold registers are used for both Forward Monitoring and Backward Reporting cell counts.
MERROR[3:0]:
MERROR[3:0] is the binary representation of the threshold of BIP-16 violations per
Performance Monitoring block required to declare a Severely Errored Cell Block for Errored
cells (SECB Errored). Errored cell counts are not accumulated if the SECB Errored count is
incremented. If MERROR[3:0] is a binary zero, the SECB Errored cell count is not declared
as a result of excessive BIP-16 violations.
This threshold applies to both received Forward Monitoring and Backward Reporting cells.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC AND FOR ITS CUSTOMERS’ INTERNAL USE 349