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PM7346 Datasheet(PDF) 167 Page - PMC-Sierra, Inc

Part # PM7346
Description  SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3
PDF  419 Pages
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Manufacturer  PMC [PMC-Sierra, Inc]
Direct Link  http://www.pmc-sierra.com
Logo PMC - PMC-Sierra, Inc

PM7346 Datasheet(HTML) 167 Page - PMC-Sierra, Inc

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PM7346 S/UNI-QJET
DATASHEET
PMC-960835
ISSUE 6
SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3
PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 146
Register 027H, 127H, 227H, 327H: CPPM FEBE Count MSB
Bit
Type
Function
Default
Bit 7
R
FEBE[15]
X
Bit 6
R
FEBE[14]
X
Bit 5
R
FEBE[13]
X
Bit 4
R
FEBE[12]
X
Bit 3
R
FEBE[11]
X
Bit 2
R
FEBE[10]
X
Bit 1
R
FEBE[9]
X
Bit 0
R
FEBE[8]
X
FEBE[15:0]:
FEBE[15:0] represents the number of PLCP far end block errors (FEBE) that
have been detected since the last time the FEBE error counter was polled.
The counter (and all other counters in the CPPM) is polled by writing to any of
the CPPM register addresses (x22H - x2FH). Such a write transfers the
internally accumulated count to the FEBE Error Count Registers and
simultaneously resets the internal counter to begin a new cycle of error
accumulation. This transfer occurs within 67 RCLK periods (1.5 µs for the
DS3 bit rate; 1.95µs for the E3 bit rate) of the write. The transfer and reset is
carried out in a manner that coincident events are not lost. FEBE errors are
not accumulated when the S/UNI-QJET has declared a PLCP loss of frame
defect state.



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