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1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
PRELIMINARY
XRT79L71
REV. P1.0.3
107
4
Disable ALOS Detector
R/W
0
Disable Analog LOS Detector - XRT79L71:
This READ/WRITE bit-field permits the user to either
enable or disable the Analog LOS (Loss of Signal) Detector
within the XRT79L71 device, as described below.
0 - Enables the Analog LOS Detector within the XRT79L71
device. (NOTE: This is the default condition).
1 - Disables the Analog LOS Detector within the XRT79L71
device.
N
OTE
:
This bit-field is only active if XRT79L71 has been
configured to operate in the DS3 Modes.
3
Unused
R/O
0
2
LOSMUT Enable
R/W
0
Muting upon LOS Enable - XRT79L71:
This READ/WRITE bit-field permits the user to configure
the Receive Section (within the XRT79L71 device) to auto-
matically pull their corresponding Recovered Data Output
pins (e.g., RPOS and RNEG) to GND anytime (and for the
duration that) the Receive Section declares the LOS defect
condition. In other words, this feature (if enabled) will cause
the Receive Channel to automatically "mute" the Recovered
data anytime (and for the duration that) the Receive Section
declares the LOS defect condition.
0 - Disables the "Muting upon LOS" feature. In this setting
the Receive Section will NOT automatically mute the
Recovered Data whenever it is declaring the LOS defect
condition.
1 - Enables the "Muting upon LOS" feature. In this setting
the Receive Section will automatically mute the Recovered
Data whenever it is declaring the LOS defect condition.
1
Receive Monitor Mode
Enable
R/W
0
Receive Monitor Mode Enable - XRT79L71:
This READ/WRITE bit-field permits the user to configure
the Receive Section of XRT79L71 to operate in the
"Receive Monitor" Mode.
If the user configures the Receive Section to operate in the
"Receive Monitor Mode", then it will be able to receive a
nominal DSX-3/STSX-1 signal that has been attenuator by
20dB of flat loss along with 6dB of cable loss, in an error-
free manner, and without declaring the LOS defect condi-
tion.
0 - Configures the corresponding channel to operate in the
"Normal" Mode.
1 - Configure the corresponding channel to operate in the
"Receive Monitor" Mode.
B
IT
N
UMBER
N
AME
T
YPE
D
EFAULT
V
ALUE
D
ESCRIPTION