
PRELIMINARY
XRT86SH328
91
REV. P1.0.6
28-CHANNEL DS1/E1 FRAMER/LIU WITH DS3 MUX & VT-MAPPER - SONET APPLICATIONS
1 and Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure)
Defect Declaration.
When the Receive STS-1/STS-3 TOH Processor block is checking the incoming STS-1/STS-3 signal in order to
determine if it should declare the SF defect condition, it will accumulate B2 byte (or BIP-24) errors throughout the user-
specified SF Defect Declaration monitoring period. If, during this SF Defect Declaration Monitoring Period, the Receive
STS-1/STS-3 TOH Processor block accumulates more B2 byte (or BIP-24) errors than that specified within the Receive
Transport SF SET Threshold register, then the Receive STS-1/STS-3 TOH Processor block will declare the SF defect
condition.
N
OTES
:
1.
The value that the user writes into these three (3) SF Set Monitor Window registers, specifies the
duration of the SF Defect Declaration Monitoring Period, in terms of ms.
2.
This particular register byte contains the MSB (most significant byte) value of the three registers that
specify the SF Defect Declaration Monitoring Period.
BIT [7:0] - SF_SET_MONITOR_INTERVAL (Bits 15 through 8)
These READ/WRITE bits, along the contents of the Receive STS-1/STS-3 Transport - SF SET Monitor Interval - Byte
2 and Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure)
Defect Declaration.
When the Receive STS-1/STS-3 TOH Processor block is checking the incoming STS-1/STS-3 signal in order to
determine if it should declare the SF defect condition, it will accumulate B2 byte (or BIP-24) errors throughout the user-
specified SF Defect Declaration Monitoring Period. If, during this SF Defect Declaration Monitoring Period the Receive
STS-1/STS-3 TOH Processor block accumulate more B2 byte (or BIP-24) errors than that specified within the Receive
STS-1/STS-3 Transport SF SET Threshold register, then the Receive STS-1/STS-3 TOH Processor block will declare
the SF defect condition.
N
OTE
:
The value that the user writes into these three (3) SF Set Monitor Window registers, specifies the duration of
the SF Defect Declaration Monitoring Period, in terms of ms.
BIT [7:0] - SF_SET_MONITOR_INTERVAL - LSB
These READ/WRITE bits, along the contents of the Receive STS-1/STS-3 Transport - SF SET Monitor Interval - Byte 2 and
Byte 1 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure) Defect Dec-
laration.
When the Receive STS-1/STS-3 TOH Processor block is checking the incoming STS-1/STS-3 signal in order to determine
if it should declare the SF defect condition, it will accumulate B2 byte (or BIP-24) errors throughout the user-specified SF
Defect Declaration Monitoring Period. If, during this SF Defect Declaration Monitoring Period, the Receive STS-1/STS-3
TOH Processor block accumulates more B2 byte (or BIP-24) errors than that specified within the Receive STS-1/STS-3
Transport SF SET Threshold register, then the Receive STS-1/STS-3 TOH Processor block will declare the SF defect con-
dition.
T
ABLE
101: R
ECEIVE
STS-1/STS-3 T
RANSPORT
- R
ECEIVE
SF SET M
ONITOR
I
NTERVAL
- B
YTE
1 (A
DDRESS
L
OCATION
= 0
X
0232)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_SET_MONITOR_WINDOW[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
T
ABLE
102: R
ECEIVE
STS-1/STS-3 T
RANSPORT
- R
ECEIVE
SF SET M
ONITOR
I
NTERVAL
- B
YTE
0 (A
DDRESS
L
OCATION
= 0
X
0233)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_SET_MONITOR_WINDOW[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1