
PRELIMINARY
XRT86SH221
264
REV. P1.0.5
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT 7 - RFI-V Defect - Event Mask:
This READ/WRITE bit-field permits the user to either enable or disable the RFI-V Defect defect to/from causing the VT
Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT De-Mapper block
will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress Direction - E1 Drop
Control Register - Byte 1 to 1 anytime it declares the RFI-V defect condition. Conversely, if the user disables this
feature, then the Receive VT-De-Mapper Block will NOT assert the VT Error Event Declared bit-field whenever it
declares the RFI-V defect condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the RFI-V defect condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the RFI-V defect condition.
BIT 6 - RDI-V Defect - Event Mask:
This READ/WRITE bit-field permits the user to either enable or disable the RDI-V Defect defect to/from causing the VT
Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT De-Mapper block
will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress Direction - E1 Drop
Control Register - Byte 1 to 1 anytime it declares the RDI-V defect condition. Conversely, if the user disables this
feature, then the Receive VT-De-Mapper Block will NOT assert the VT Error Event Declared bit-field whenever it
declares the RDI-V defect condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the RDI-V defect condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the RDI-V defect condition.
BIT 5 - Change of Receive APS Value - Event Mask:
This READ/WRITE bit-field permits the user to either enable or disable the Change of APS Value event to/from causing
the VT Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT-De-Mapper
block will assert Bit 7 (VT Error Event Declared) within the Channel Control VT Mapper Block - Egress Direction - E1
Drop Control Register - Byte 1 to 1 anytime it declares the Change of Receive APS Value event. Conversely, if the user
disables this feature, then the Receive VT-De-Mapper Block will NOT assert the VT Error Event Declared bit-field
whenever it declares the Change of Receive APS Value event.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the Change of Receive APS Value event.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the Change of Receive APS Value event.
BIT 4 - Change of Receive APS Value:
This READ/W1C bit-field indicates whether or not the Change of Receive APS Value event has occurred (within this
Tributary) since the last time that the user has written a 1 to clear this bit-field. The Receive VT-De-Mapper block will
declare the Change of Receive APS Value whenever it has accepted a new value from the K4 bytes within the incoming
VT data-stream.
0 - Indicates that the Change of Receive APS Value event has NOT occurred since the last time the user has written
a 1 to clear this bit-field.
1 - Indicates that the Change of Receive APS Value event has occurred since the last time the user has written a 1
to clear this bit-field.
T
ABLE
239: C
HANNEL
C
ONTROL
- VT-D
E
M
APPER
R
ECEIVE
APS R
EGISTER
0 (VTDRAPSR0 = 0
X
ND53)
B
IT
7
B
IT
6
B
IT
5
B
IT
4
B
IT
3
B
IT
2
B
IT
1
B
IT
0
RFI-V Defect
Event - Mask
RDI-V Defect
Event - Mask
Change of
Receive APS
Value -
Event Mask
Change of
Receive APS
Value
Receive APS Value[3:0]
R/W
R/W
R/W
R/W1C
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0