PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
All SD BERM configuration registers should be set up before the monitoring is enabled.
SFCMODE:
The SFCMODE alarm bit selects the Signal Failure BERM window size to use for clearing
alarms. When SFCMODE is a logic 0 the SF BERM will clear an alarm using the same
window size used for declaration. When SFCMODE is a logic 1 the SF BERM will clear an
alarm using a window size that is 8 times longer than alarm declaration window size. The
declaration window size is defined by the SBER SF BERM Accumulation Period register.
SFSMODE:
The SFSMODE bit selects the Signal Failure BERM saturation mode. When SFSMODE is a
logic 0 the SF BERM will saturate the BIP count on a per frame basis using the SBER SF
Saturation Threshold register value. When SFSMODE is a logic 1 the SF BERM will saturate
the BIP count on a per window subtotals accumulation period basis using the SBER SD
Saturation Threshold register value.
SFBERTEN:
The SFBERTEN bit enables automatic monitoring of line bit error rate threshold events by the
Signal Failure BERM. When SFBERTEN is a logic one, the SF BERM continuously monitors
line BIP errors over a period defined in the BERM configuration registers. When SFBERTEN
is a logic zero, the SF BERM BIP accumulation logic is disabled, and the BERM logic is reset
to restart in the declaration monitoring state.
All SF BERM configuration registers should be set up before the monitoring is enabled.
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
169
PMC [ PMC-SIERRA, INC ]
