S/UNI®-JET Data Sheet
Released
Register 333H: DS3 FRMR Status
Bit
Type
R/W
R
R
R
R
R
R
R
Function
ACE
REDV
CBITV
FERFV
IDLV
AISV
OOFV
LOSV
Default
0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
LOSV
The LOSV bit indicates the current LOS defect state. LOSV is a logic one when a sequence
of 175 zeros is detected on the B3ZS encoded DS3 receive stream. LOSV is a logic zero
when a signal with a ones density greater than 33% for 175 ± 1 bit periods is detected.
OOFV
The OOFV bit indicates the current DS3 OOF defect state. When the S/UNI-JET has lost
frame alignment and is searching for the new alignment, OOFV is set to logic one. When the
S/UNI-JET has found frame alignment, the OOFV bit is set to logic zero.
AISV
The AISV bit indicates the AIS state. When the S/UNI-JET detects the AIS maintenance
signal, AISV is set to logic one.
IDLV
The IDLV bit indicates the IDLE signal state. When the S/UNI-JET detects the IDLE
maintenance signal, IDLV is set to logic one.
FERFV
The FERFV bit indicates the current far end receive failure defect state. When the S/UNI-JET
detects an M-frame with the X1 and X2 bits both set to zero, FERFV is set to logic one.
When the S/UNI-JET detects an M-frame with the X1 and X2 bits both set to one, FERFV is
set to logic zero.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990267, Issue 3
135
PMC [ PMC-SIERRA, INC ]
