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DS26401 Datasheet(PDF) 178 Page - Dallas Semiconductor

Part # DS26401
Description  Octal T1/E1/J1 Framer
PDF  309 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS26401 Datasheet(HTML) 178 Page - Dallas Semiconductor

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DS26401 Octal T1/E1/J1 Framer
178
10.8.2 E1 Path Code Violation Count Register (PCVCR)
In E1 operation, the Path Code Violation Count register records CRC4 errors. Since the maximum CRC4 count in a
one-second period is 1000, this counter cannot saturate. The counter is disabled during loss of sync at either the
FAS or CRC4 level; it will continue to count if loss of multiframe sync occurs at the CAS level.
The Path Code Violation Count Register 1 (PCVCR1) is the most significant word and PCVCR2 is the least
significant word of a 16-bit counter that records path violations (PVs).
Register Name:
PCVCR1
Register Description:
Path Code Violation Count Register 1
Register Address:
052h + (200h x n) : where n = 0 to 7, for Ports 1 to 8
Bit #
7
6
5
4
3
2
1
0
Name
PCVC15
PCVC14 PCVC13 PCVC12 PCVC11 PCVC10
PCVC9
PCVC8
Default
0
0
0
0
0
0
0
0
Bits 0 to 7 / Path Code Violation Counter Bits 8 to 15 (PCVC8 to PCVC15).
PCVC15 is the MSB of the 16-bit
path code violation count.
Register Name:
PCVCR2
Register Description:
Path Code Violation Count Register 2
Register Address:
053h + (200h x n) : where n = 0 to 7, for Ports 1 to 8
Bit #
7
6
5
4
3
2
1
0
Name
PCVC7
PCVC6
PCVC5
PCVC4
PCVC3
PCVC2
PCVC1
PCVC0
Default
0
0
0
0
0
0
0
0
Bits 0 to 7 / Path Code Violation Counter Bits 0 to 7 (PCVC0 to PCVC7).
PCVC0 is the LSB of the 16-bit path
code violation count.



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