PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 95
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PM5366-PI
Manufacturer Part Number
PM5366-PI
Description
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM5366-PI.pdf
(267 pages)
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PRELIMINARY
DATASHEET
PMC-2010672
9.13 DS3 Transmitter (DS3-TRAN)
PROPRIETARY AND CONFIDENTIAL
• path parity error (CPERR) events
• far end block error (FEBE) events
• excess zeros (EXZS)
• framing bit error (FERR) events
Due to the off-line nature of the DS3 and E3 Framers, PMON continues to
accumulate performance metrics even while the framer has declared OOF.
When an accumulation interval is signaled by a write to the PMON register
address space or to the Global PMON Update register, the PMON transfers the
current counter values into microprocessor accessible holding registers and
resets the counters to begin accumulating error events for the next interval. The
counters are reset in such a manner that error events occurring during the reset
period are not missed.
When counter data is transferred into the holding registers, an interrupt is
generated, providing the interrupt is enabled. If the holding registers have not
been read since the last interrupt, an overrun status bit is set. In addition, a
register is provided to indicate changes in the PMON counters since the last
accumulation interval.
Whenever counter data is transferred into the holding registers, an interrupt is
generated, providing the interrupt is enabled. If the holding registers have not
been read since the last interrupt, an overrun status bit is set.
Three DS3 transmitters are instantiated. Each may be programmed to provide
framing for unchannelized data from TDATI[x] or the SBI bus, or framing for
multiplexed T1s or E1s (ITU-T Rec. G.747).
The DS3 Transmitter (DS3-TRAN) Block integrates circuitry required to insert the
overhead bits into a DS3 bit stream and produce a B3ZS-encoded signal. The
T3-TRAN is directly compatible with the M23 and C-bit parity DS3 formats.
Status signals such as far end receive failure (FERF), the alarm indication signal,
and the idle signal can be inserted when their transmission is enabled by internal
register bits. FERF can also be automatically inserted on detection of any
combination of LOS, OOF or RED, or AIS by the DS3-FRMR.
ISSUE 1
83
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
AND M13 MULTIPLEXER
PM5366 TEMAP-84
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