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changes. In some cases, the AUTO Path Configuration specifies AUTORDI functionality for
two channels (working channel of two channels bridged together). In other cases, the AUTO
Path Configuration specifies AUTORDI functionality for another channel (crossbar between
two channels). And is some cases, the AUTO Path Configuration register is ignored (protection
channel of two channels bridged together).
S/UNI-8x155 ASSP Telecom Standard Product Data Sheet
Released
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
390
The saturation threshold is not listed in the table, and should be programmed with the value
to address issues associated with error bursts.
For additional information, please refer to the BERM application note (PMC-950820) for more
detailed information.
Table 19 Recommended BERM settings
STS
Declare
BER
Evals /
Second
SF/SD
SMODE
SF/SD
CMODE
SF/SD
SAP
SF/SD
DTH
SF/SD
CTH
STS-3c
10-3
0.008
0x000008
0x245
0x083
STS-3c
10-4
0.013
0x00000D
0x0A3
0x0B4
STS-3c
10-5
0.100
0x000064
0x084
0x08E
STS-3c
10-6
1.000
0x0003E8
0x085
0x08E
STS-3c
10-7
10.000
0x002710
0x085
0x08E
STS-3c
10-8
83.000
0x014438
0x06D
0x077
STS-3c
10-9
667.000
0x0A2D78
0x055
0x061
13.8 Auto Alarm Control Configuration
The S/UNI-8x155 supports the automatic generation of transmit alarm information based on the
detected receive alarms. This functionality is controlled by the master AUTOxx register bits in
channel register offset 0x002 and the Auto Path and Line Configuration channel register offsets
0x008 to 0x00F.
When consequential action is enabled for a given alarm condition, other S/UNI-8x155
configuration registers become important. For instance, if consequential action for signal
degrade is enabled, the RASE must be configured for the desired alarm thresholds. The
following table lists register settings for path RDI and extended path RDI interfaces for a
channel (register offsets are supplied for channel #0).
Table 20 Path RDI and Extended RDI Register Settings
Offset
RDI
EPRDI
0x009
11111111
01101111
0x00A
xxxxxxxx
11111111
0x00B
10xxx010
11xxx111
0x040
x00x00xx
x11x00xx