
XRT86SH328
PRELIMINARY
72
28-CHANNEL DS1/E1 FRAMER/LIU WITH DS3 MUX & VT-MAPPER - SONET APPLICATIONS
REV. P1.0.6
BIT 1 - Unused
BIT 0 - No Overhead Data Extract
BIT 7 - Unused
BIT 6 -
Signal Failure (SF) Defect Condition Detect Enable
This READ/WRITE bit-field is used to enable or disable SF Defect Detection and Declaration by the Receive STS-
1/STS-3 TOH Processor block.
`
0 - Configures the Receive STS-1/STS-3 TOH Processor block to NOT declare nor clear the SF defect condition per
the user-specified SF defect declaration and clearance criteria.
`
1 - Configures the Receive STS-1/STS-3 TOH Processor block to declare and clear the SF defect condition per the
user-specified SF defect declaration and clearance criteria.
BIT 5 -
Signal Degrade (SD) Defect Condition Detect Enable
This READ/WRITE bit-field is used to enable or disable SD Detection and Declaration by the Receive STS-1/STS-3
TOH Processor block.
`
0 - Configures the Receive STS-1/STS-3 TOH Processor block to NOT declare nor clear the SD defect condition per
the user-specified SD defect declaration and clearance criteria.
`
1 - Configures the Receive STS-1/STS-3 TOH Processor block to declare and clear the SD defect condition per the
user-specified SD defect declaration and clearance criteria.
BIT 4 -
De-Scramble Disable
This READ/WRITE bit-field is used to either enable or disable de-scrambling by the Receive STS-1/STS-3 TOH
Processor block, associated with channel N.
`
0 - De-Scrambling is enabled.
`
1 - De-Scrambling is disabled.
BIT 3 - Unused
BIT 2 - REI-L Error Type
This READ/WRITE bit-field is used to specify how the Receive STS-1/STS-3 TOH Processor block will count (or tally)
REI-L events, for Performance Monitoring purposes. The user can configure the Receive STS-1/STS-3 TOH Processor
block to increment REI-L events on either a per-bit or per-frame basis.
If the user configures the Receive STS-1/STS-3 TOH Processor block to increment REI-L events on a per-bit basis,
then it will incrememt the Receive STS-1/STS-3 Transport REI-L Error Count register by the value of the lower nibble
within the M0/M1 byte of the incoming STS-1/STS-3 data-stream.
If the user configures the Receive STS-1/STS-3 TOH Processor block to increment REI-L events on a per-frame basis,
then it will increment the Receive STS-1/STS-3 Transport REI-L Error Count register each time it receives an STS-
1/STS-3 or STS-3 frame, in which the lower nibble of the M0/M1 byte is set to a non-zero value.
`
0 - Configures the Receive STS-1/STS-3 TOH Processor block to count or tally REI-L events on a per-bit basis.
`
1 - Configures the Receive STS-1/STS-3 TOH Processor block to count or tally REI-L events on a per-frame basis.
BIT 1 - B2 Error Type
This READ/WRITE bit-field is used to specify how the Receive STS-1/STS-3 TOH Processor block will count (or tally)
B2 byte errors, for Performance Monitoring purposes. The user can configure the Receive STS-1/STS-3 TOH
Processor block to increment B2 byte errors on either a per-bit or a per-frame basis.
T
ABLE
73: R
ECEIVE
STS-1/STS-3 T
RANSPORT
C
ONTROL
R
EGISTER
- B
YTE
0 (A
DDRESS
L
OCATION
= 0
X
0203)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Unused
SF Defect
Condition
Detect
Enable
SD Defect
Condition
Detect
Enable
Descramble-
Disable
Unused
REI-LError
Type
B2 ErrorType
B1 Error
Type
R/O
R/W
R/W
R/W
R/O
R/W
R/W
R/W
0
0
0
0
0
0
0
0