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XRT84L38 View Datasheet(PDF) - Exar Corporation

Part Name
Description
MFG CO.
XRT84L38
Exar
Exar Corporation Exar
'XRT84L38' PDF : 453 Pages View PDF
REV. 1.0.1
XRT84L38
OCTAL T1/E1/J1 FRAMER
BIT NUMBER
BIT NAME
BIT TYPE
BIT DESCRIPTION
2
Receive Line Clock Inver- R/W Receive Line Clock Inversion:
sion
This READ/WRITE bit-field permits the user to select which
edge of the Receive Line Clock will be used by the framer to
sample incoming data from LIU.
When this bit is set to zero:
The receive data transition occurs at rising edge of the Receive
Line Clock. The framer will sample data at falling edge of the
Receive Line Clock.
When this bit is set to one:
The receive data transition occurs at falling edge of the Receive
Line Clock. The frame will sample data at rising edge of the
Receive Line Clock.
1
Transmit B8ZS Enable
R/W Transmit B8ZS Enable:
This READ/WRITE bit-field permits the user to enable transmit
B8ZS encoding.
When this bit is set to zero:
The framer will send out transmit data encoded by B8ZS. The
user should turn off the B8ZS encoding of the LIU device.
When this bit is set to one:
The framer will send out transmit data in AMI line code without
B8ZS encoding. The user should turn on or off B8ZS encoding of
the LIU device depending on system requirement.
0
Receive B8ZS Enable
R/W Receive B8ZS Enable:
This READ/WRITE bit-field permits the user to enable receive
B8ZS decoding.
When this bit is set to zero:The framer will decode the incoming
data assuming that they are B8ZS encoded.When this bit is set
to one:The framer disables B8ZS decoding of the incoming data.
63
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