PM5316 datasheet(40/491 Pages) PMC

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SONET/SDH Payload Extractor/Aligner (SPECTRA-4x155)

Production

Proprietary and Confidential to PMC-Sierra, Inc. and for its customers’ internal use

Document ID: PMC-1990822, Issue 4

Pin Name

Type

No.

Function

RLAIS1/

RLAIS2/

RLAIS3/

RLAIS4/

/TRCPCLK1

/TRCPCLK2

/TRCPCLK3

/TRCPCLK4

Input

D10

The receive line AIS insertion (RLAIS1-4) signal controls the

insertion of line AIS in the received stream by the RSOP block, when

the ring control port is disabled. When one of the RLAIS1-4 pins is

set high, line AIS is inserted in the corresponding received stream.

When RLAIS1-4 is set low, line AIS may be optionally inserted

automatically upon detection of LOS, LOF, section trace alarms or

line AIS in the incoming stream.

The Receive LAIS Control register contains the register bits that

control the alarms that are inserted using the RLAIS pin of the

corresponding channel. RLAIS signals are internally retimed.

RLAIS1-4 must be asserted for a minimum period of one

SONET/SHD frame (125 us) to be detected by the SPECTRA-4x155.

Line AIS must be held for a minimum of three SONET/SDH frames

to be compliant to the SONET/SDH standards.

The Transmit ring control port clock (TRCPCLK1-4) signal provides

timing for the transmit ring control port when the ring control port is

enabled. The TRCPCLK1-4 signal is nominally a 3.24 MHz clock and

can be connected directly to the RRCPCLK output of a mate

SPECTRA-4x155 in ring-based Add/Drop multiplexer applications.

The RCPEN bit in the Ring Control register of the corresponding

channel controls the enabling and disabling of the ring control port.

The TRCPFP1-4 and TRCPDAT1-4 signals are sampled on the

rising edge of TRCPCLK1-4.

PM5316 Datasheet(PDF) 40 Page - PMC-Sierra, Inc