PMC-Sierra,Inc.
PM5362
TUPP-PLUS
• Extracts tributary Path signal label into
internal registers and detects Change
Of tributary Path Signal Label
(COPSL) events for each tributary.
• Detects tributary Path Signal Label
Mismatch (PSLM) and unstable
(PSLU) alarms.
• Detects tributary unequipped defect
(UNEQ), tributary Path Defect
Indication (PDI-V), and the assertion
and removal of tributary extended
Remote Defect Indications (RDI).
• Extracts and stores the tributary size
(SS) bits.
• Calculates and compares the tributary
Path BIP-2 error detection code.
Accumulates the BIP-2 errors and
tributary Path Far-End Block Errors
(FEBEs) on a block or bit basis.
• Supports in-band error reporting by
updating the FEBE, RDI, and auxiliary
RDI bits in the V5 byte (G1 in TU3)
with the status of the incoming stream.
• Optionally generates tributary Path AIS
on the detection of LOP, loss of
tributary multiframe, trace identifier
unstable, trace identifier mismatch,
signal label unstable, and /or signal
label mismatch. Also allows software
to force AIS insertion.
• Under software control, allows
insertion of all-zeros or all-ones
tributary idle code with unequipped
indication.
VT/TU Payload Processor/Performance Monitor
FEATURES
• A configurable, multi-channel, payload
processor for alignment of SONET
Virtual Tributaries (VTs) or SDH
Tributary Units (TUs). Configurable to
process any legal mix of tributaries.
• Provides independently-configurable
AU3/AU4 frame format on incoming
and outgoing directions.
• Compensates for pleisiochronous
relationships between incoming and
outgoing higher level (STS-1, AU4,
AU3) synchronous payload envelope
frame rates through processing of the
lower level (VT6, VT3, VT2, VT1.5,
TU3, TU2, TU12, or TU11) tributary
pointers.
• Provides for multiframe
synchronization or ring closure at the
head-end node in a SONET/SDH ring.
• Optionally frames to the H4 byte in the
Path overhead to determine tributary
multiframe boundaries.
• Inserts valid pointers, and all-zeros
transport overhead bytes on the
outgoing stream with valid
“Telecombus” control signals when
configured to operate in locked mode.
• Independently-configurable incoming
and outgoing interfaces that operate in
byte-interface mode using a
19.44 MHz clock or in nibble-interface
mode using a 38.88 MHz clock.
• Provides a generic 8-bit
microprocessor bus interface and a
standard 5-signal IEEE P1149.1 JTAG
test port.
• Low power, +5 V, CMOS technology,
TTL-compatible inputs and outputs.
• Available in a 160-pin Plastic Quad
Flat Pack (PQFP) package (28 by
28 mm).
APPLICATIONS
• SONET/SDH Add/Drop and Terminal
Multiplexers
• SONET/SDH Broadband Cross-
Connects
• SONET/SDH and ATM Test
Equipment
BLOCK DIAGRAM
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PER-TRIBUTARY FUNCTIONS
• Detects Loss Of Pointer (LOP) and
reacquisition.
• Extracts and serializes the entire
tributary Path overhead of each
tributary.
• Detects tributary elastic store
underflow and overflow errors.
• Stores and processes 16-byte or 64-
byte format tributary Path trace
messages (tributary trail trace
identifiers). Detects tributary Path
Trace Mismatch (TIM) and unstable
(TIU) alarms.
PMC-960411 (R3)
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1998 PMC-Sierra, Inc. September, 1998
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