PM5343
STXC
SONET/SDH 155 Mbit/s Transport O/H Terminating Transceiver
FEATURES
• Monolithic, SONET/SDH Transport
Overhead Terminating Transceiver for
use in STS-1, STS-3, or STM-1
interface applications, operating at
serial interface speeds of up to
155.52 Mbit/s.
• Provides termination for SONET
Section and Line, and SDH
Regenerator Section and Multiplexer
Section transport overhead.
• Companion to the PM5344 SPTX
SONET/SDH Path Terminating
Transceiver.
• Operates in STS-1 and STS-3 bit-
serial (PECL/TTL I/O) and byte-serial
(TTL I/O) modes. Provides
independent control of the transmit and
receive operating modes for
asymmetrical bandwidth applications.
• Frames to the STS-1 or STS-3
(STM-1) receive stream and inserts the
framing bytes (A1 and A2) and the
STS identification bytes (C1) into the
transmit stream; descrambles the
TLAIS/TRCPDTAT
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receive stream and scrambles the
transmit stream.
Calculates and compares the bit
interleaved parity error detection codes
(B1 and B2) for the receive stream,
and calculates and inserts B1 and B2
in the transmit stream.
Accumulates near-end errors (B1 and
B2) and far-end errors (Z2) and inserts
line Far-End Block Errors (FEBEs) into
the Z2 growth byte based on received
B2 errors.
Extracts and serializes the order wire
channels (E1 and E2), the data
communication channels (D1-D3 and
D4-D12) and the section user channel
(F1) from the receive stream, and
inserts the corresponding signals into
the transmit stream.
Extracts and serializes the Automatic
Protection Switch (APS) channel (K1,
K2) bytes, filtering and extracting them
into internal registers. Inserts the APS
channel into the transmit stream.
Detects Loss Of Signal (LOS), Out Of
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Frame (OOF), Loss Of Frame (LOF),
Far-End Receive Failure (FERF), line
Alarm Indication Signal (AIS), and
protection switching byte failure
alarms.
Inserts and extracts a 64- or 16-byte
section trace (C1) message using an
internal register bank. Detects an
unstable section trace message or
mismatch with an expected message,
and inserts Line AIS upon either of
these conditions.
Inserts FERF and AIS in the transmit
stream.
Provides LOS insertion, framing
pattern error insertion, and coding
violation insertion (B1 and B2) for
diagnostic purposes. B1 and B2 errors
can also be generated “on-the-fly”
using an error insertion mask.
Provides a transmit and receive ring
control port, allowing alarm and
maintenance signal control and status
to be passed between mate STXCs for
ring-based add/drop multiplexer
applications.
TRDI/TRCPFP
SCPO[5]/RDP
TLDCLK
TLD
TLOW
TAPS
TAPSCLK
TSDCLK
TSD
TSOW
TSUC
TOWCLK
Transmit Ring
Control Port
TOFP
TOUT[7:0]
GTICLK
TSOUT
TSICLK
TXD+/-
TXCO+/-
TXCI+/-
TSER
RICLK
RIFP
RIN[7:0]
GRICLK
RSIN
RSICLK
RXC+/-
RXD+/-
RSER
Serial to
Parallel
TTOHFP
TTOH
Status and
Control Port
SCP[1]
SCP[2]/TPL
SCP[3]/TDP
BLOCK DIAGRAM
RLAIS/TRCPCLK
SCPO[4:0]
TTOHCLK
TTOHEN
Transmit Section O/H
Processor
Transmit
Section
Trace Buffer
Transmit Line O/H
Processor
Transmit
O/H
Access
TDIS
TIFP/TC1J1V1
TICLK
TIN1[7:0]
Parallel to
Serial
Receive
Section
Trace Buffer
Receive Section O/H
Processor
ROFP
Receive Line O/H
Processor
ROUT[7:0]
Receive Ring
Control Port
Microprocessor
Interface
Receive
O/H
Access
RSDCLK
RSD
RSOW
RSUC
ROWCLK
RDI/RRCPCLK
B2E
RLDCLK
RLD
RLOW
RAPS
RAPSCLK
LAIS/RRCPDAT
LOS/RRCPFP
PMC-1931137 (R6)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
D [7:0]
A [6:0]
MBEB
ALE
CSB
WRB_RWB
RDB_E
RSTB
INTB
© Copyright PMC-Sierra, Inc. 2001
RTOHCLK
B1E
RTOHFP
LOF
OOF
RTOH
PMC [ PMC-SIERRA, INC ]
