
XRT86SH221
PRELIMINARY
269
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. P1.0.5
BIT 7 - VT Size Error Event - Composite:
This READ-ONLY bit-field reports whether or not an incorrect virtual container size bits were received. The valid virtual
container size bits are "10" for VT2/TU-12.
0 - Indicates that the VT-De-Mapper block is NOT currently receiving an incorrect VT Size bits error.
1 - Indicates that the VT-De-Mapper block is currently receiving an incorrect VT Size bits error.
BIT 6 - LOP-V Defect Event - Composite:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "VT Path Loss of
Pointer" (LOP-V) defect condition.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the LOP-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the LOP-V defect condition.
BIT 5 - RFI-V Defect Event - Composite:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Remote Failure
Indicator" (RFI-V) defect condition. Three consecutive VT Frames with consistent RFI defect indicator value must be
detected for this bit to be set.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the RFI-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the RFI-V defect condition.
BIT 4 - RDI-V Defect Event - Composite:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Remote Defect
Indicator" (RDI-V) defect condition. Three consecutive VT Frames with consistent RDI defect indicator value must be
detected for this bit to be set.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the RDI-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the RDI-V defect condition.
BIT 3 - AIS-V Defect Event - Composite:
This READ-ONLY bit-field indicates whether or not one or more of the VT-De-Mapper block is currently declaring the
"Alarm Indication Signal" (AIS-V) defect condition due to one of the VT AIS-F fields in the RAPSxx registers being active
and not masked. This bit will be set if AIS-V defect condition has been declared in any of the 21 VT-De-mapper block.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the AIS-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the AIS-V defect condition.
BIT 2 - AIS Pointer Event - Composite:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Alarm Indication
Signal Pointer" (AISP-V) defect condition. Three consecutive VT Frames with all ones value for V1 and V2 pointer bytes
must be detected for this bit to be set.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the AISP-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the AISP-V defect condition.
T
ABLE
246: C
HANNEL
C
ONTROL
- VT-D
E
M
APPER
C
OMPOSITE
S
TATUS
R
EGISTER
0 (VTDCSR0 = 0
X
ND61)
B
IT
7
B
IT
6
B
IT
5
B
IT
4
B
IT
3
B
IT
2
B
IT
1
B
IT
0
VT Size
Error Event -
Composite
LOP-V
Defect Event
- Composite
RFI-V Defect
Event -
Composite
RDI-V Defect
Event -
Composite
AIS-V Defect
Event -
Composite
AIS Pointer
Event -
Composite
Change in
VT Label
Event -
Composite
E1 AIS or
LOC Event -
Composite
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0