XRT79L71_1 Datasheet, PDF (112/434 Pages) Exar Corporation – 1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -

XRT79L71
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION
REV. 1.0.0
Receive E3 Configuration and Status Register # 2 - G.832 (Address = 0x1111)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
RxLOF
Algo
LOF Defect
Condition
Declared
OOF Defect
Condition
Declared
LOS Defect
Condition
Declared
AIS Defect
Condition
Declared
RxPLD
Unstab
BIT 1
RxT
Mark
R/W
R/O
R/O
R/O
R/O
R/O
R/O
0
1
1
0
0
1
1
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 Algorithm:
This READ/WRITE bit-field permits the user to select a Receive
LOF Defect Declaration Algorithm, as indicated below.
0 - Configures the Receive E3 Framer block to declare the LOF
defect condition after it has resided within the OOF (Out of
Frame) condition for 24 E3 frame periods.
1 - Configure the Receive E3 Framer block will declare the LOF
defect condition after it has resided within the OOF condition 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
E3 Framer block is currently declaring the Out of Frame (OOF)
defect condition, as indicated below.
0 - Indicates that the Receive E3 Framer block is NOT currently
declaring the OOF defect condition within the incoming data-
stream.
1 - Indicates that the Receive E3 Framer block is currently
declaring the OOF defect condition within the incoming data-
stream.
NOTE: The Receive E3 Framer block will declare the OOF
defect condition anytime it detects FA1 or FA2 byte
errors in four (4) consecutive incoming E3 frames.
103