PM5343STXC View Datasheet(PDF) - PMC-Sierra
Part Name
Description
MFG CO.
'PM5343STXC' PDF : 198 Pages View PDF
DATA SHEET
PMC-930303
ISSUE 6
PM5343 STXC
SONET/SDH TRANSPORT OVERHEAD TRANSCEIVER
Pin Name Pin Type Pin Function
No.
RAPS
RTOH
Output
Output
82 The receive automatic protection switch
channel (RAPS) signal carries the automatic
protection switch channel (K1, K2) extracted
from the incoming stream. RAPS is updated
on the falling edge of RAPSCLK.
87 The receive transport overhead (RTOH) signal
contains the receive transport overhead bytes
(A1, A2, J0, Z0, B1, E1, F1, D1-D3, H1-H3, B2,
K1, K2, D4-D12, Z1, Z2, and E2) extracted
from the incoming stream. RTOH is updated
on the falling edge of RTOHCLK.
RTOHCLK Output
88 The receive transport overhead clock
(RTOHCLK) is nominally a 5.184 MHz or 1.728
MHz clock that provides timing to process the
extracted receive transport overhead, RTOH.
RTOHCLK is a gapped 6.48 MHz clock when
accessing the transport overhead of an STS-
3/STM-1 stream. RTOHCLK is a gapped 2.16
MHz clock when accessing the transport
overhead of an STS-1 stream.
RTOHFP Output
84 The receive transport overhead frame position
(RTOHFP) signal is used to locate the
individual receive transport overhead bits in the
receive transport overhead, RTOH. RTOHFP is
set high while bit 1 (the most significant bit) of
the first framing byte (A1) is present in the
RTOH stream. RTOHFP is updated on the
falling edge of RTOHCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 17
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