PM5342 datasheet(97/558 Pages) PMC

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PM5342 SPECTRA-155

DATA SHEET

PMC-970133

ISSUE 4

SONET/SDH PAYLOAD EXTRACTOR/ALIGNER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Pin Name

Type

No.

Function

SS[31]/GDP

Output C7

The GENERATED bus data parity signal (GDP)

indicates the parity of the GENERATED bus

signals. The GENERATED data bus (GD[1:0])

is always included in parity calculations. The

internal register bits control the inclusion of the

GPL and GC1J1V1 signals in parity calculation

and the sense (odd/even) of the parity. GDP is

updated on the rising edge of ACK.

SS[32]/

DTPAIS[1]

SS[33]/

DTPAIS[2]

SS[34]/

DTPAIS[3]

Input

The active high DROP bus or Transmit path

alarm indication signals (DTPAIS[3:1]) controls

the insertion of path AIS in the DROP bus

DD[3:0] or the transmit stream. The function of

each DTPAIS[3:1] input pin is independently

controlled by the TPAIS_EN bits in the Transmit

Path AIS Control #1, Transmit Path AIS Control

#2, and Transmit Path AIS Control #3 registers.

In STS-3 mode, each DTPAIS[3:1] corresponds

to a separate STS-1. DTPAIS[1] corresponds

to STS#1, DTPAIS[2] corresponds to STS#2

and DTPAIS[3] corresponds to STS#3. In

STS-3c (STM-1/AU4) mode or STS-1

(STM-0/AU3) mode, only DTPAIS[1] is

significant.

A high level on DTPAIS forces the insertion of

the all ones pattern into the complete SPE and

the payload pointer bytes (H1, H2, and H3).

Path AIS insertion can also be inserted via

terminating tandem connection termination

equipment applications.

DTPAIS[3:1] is sampled on the rising edge of

DCK for DROP bus or TCLK for transmit stream

Path AIS insertion.

PM5342 Datasheet(PDF) 97 Page - PMC-Sierra, Inc

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