XRT79L71_1 Datasheet, PDF (99/434 Pages) Exar Corporation – 1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -

REV. 1.0.0
XRT79L71
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION
Receive E3 Configuration and Status Register # 2 - G.751 (Address = 0x1111)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
RxLOF
Algo
LOF Defect
Condition
Declared
OOF Defect
Condition
Declared
LOS Defect
Condition
Declared
AIS Defect
Condition
Declared
Unused
R/W
R/O
R/O
R/O
R/O
R/O
R/O
0
1
1
0
0
0
0
BIT 0
FERF/RDI
Defect
Condition
Declared
R/O
1
BIT NUMBER
NAME
7
RxLOF Algo
6
LOF Defect Condition
Declared
5
OOF Defect Condition
Declared
TYPE
R/W
R/O
R/O
DESCRIPTION
Receive LOF (Loss of Frame) Defect Declaration/Clearance
Criteria Select:
This READ/WRITE bit-field permits the user to select the Loss of
Frame (LOF) Defect Declaration and Clearance Criteria.
0 - The Receive E3 Framer block declares the LOF defect con-
dition if the Receive E3 Framer block resides within the OOF
(Out-of-Frame) state for 24 E3 frame periods. The Receive E3
Framer block clears the LOF defect condition once the Receive
E3 Framer block resides within the In-Frame state for 24 E3
frame period.
1 - The Receive E3 Framer block declares the LOF defect condi-
tion if the Receive E3 Framer block resides within the OOF state
for 8 E3 frame periods. The Receive E3 Framer block clears the
LOF defect condition once the Receive DS3/E3 Framer block
resides within the In-Frame state for 8 E3 frame periods.
LOF (Loss of Frame) Defect Condition Indicator:
This READ-ONLY bit-field indicates whether or not the Receive
E3 Framer block is currently declaring the LOF defect condition,
as described below.
0 - Indicates that the Receive E3 Framer block is NOT currently
declaring the LOF defect condition with the incoming data
stream.
1 - Indicates that the Receive E3 Framer block is currently
declaring the LOF defect condition with the incoming data
stream.
OOF (Out of Frame) Defect Condition Indicator:
This READ-ONLY bit-field indicates whether or not the Receive
DS3/E3 Framer block is currently declaring the OOF defect con-
dition, as described below.
0 - Indicates that the Receive E3 Framer block is NOT declaring
the OOF defect condition with the incoming data stream.
1 - Indicates that the Receive E3 Framer block is currently
declaring the OOF defect condition with the incoming data
stream.
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