
XRT79L71
REV. P1.0.3
PRELIMINARY
1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
á
234
ONE SECOND - PARITY ERROR ACCUMULATOR REGISTER - LSB (DIRECT ADDRESS = 0X1171)
B
IT
7
B
IT
6
B
IT
5
B
IT
4
B
IT
3
B
IT
2
B
IT
1
B
IT
0
One_Second_Parity_Error_Accum_LSB[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
B
IT
N
UMBER
N
AME
T
YPE
D
ESCRIPTION
7 - 0
One_Second_Parity
Error Accum_LSB[7:0]
R/O
One Second Parity Error Accumulator Register - LSB:
These READ-ONLY bits, along with that within the "One Second
Parity Error Accumulator Register - MSB" combine to reflect the
cumulative number of "Parity Errors" that have been detected by
the Frame Synchronizer block, in the last "one second" accumu-
lation period. This register contains the Least Significant byte of
this 16-bit expression.
N
OTES
:
1.
For DS3 applications, the register will reflect the
number of P-bit errors, detected within the last "one
second" accumulation period.
2.
For E3, ITU-T G.751 applications, this register will
reflect the number of BIP-4 errors, detected within the
last "one second" accumulation period..
3.
For E3, ITU-T G.832 applications, this register will
reflect the number of BIP-8 (B1 Byte) errors detected
within the last "one second" accumulation period.
ONE SECOND - CP BIT ERROR ACCUMULATOR REGISTER - MSB (DIRECT ADDRESS = 0X1172)
B
IT
7
B
IT
6
B
IT
5
B
IT
4
B
IT
3
B
IT
2
B
IT
1
B
IT
0
One_Second_CP_Bit_Error_Accum_MSB[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
B
IT
N
UMBER
N
AME
T
YPE
D
ESCRIPTION
7 - 0
One_Second_CP Bit
Error Accum_MSB[7:0]
R/O
One Second CP Bit Error Accumulator Register - MSB:
These READ-ONLY bits, along with that within the "One Second
CP-Bit Error Accumulator Register - LSB" combine to reflect the
cumulative number of "CP Bit Errors" that have been detected by
the Frame Synchronizer block, in the last "one second" accumu-
lation period.
This register contains the Most Significant byte of this 16-bit
expression.
N
OTE
:
This register is inactive if the Frame Synchronizer block is
"by-passed" or if the Frame Synchronizer block has not
been configured to operate in the DS3, C-Bit Parity
framing format.