PM5366-PI datasheet(54/267 Pages) PMC

54 / 267 page

PRELIMINARY

PM5366 TEMAP-84

DATASHEET

PMC-2010672

ISSUE 1

HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

Pin Name

Type

No.

Function

LDDP

Input

Line Drop Bus Data Parity (LDDP). The incoming

data parity signal carries the parity of the incoming

signals. The parity calculation encompasses the

LDDATA[7:0] bus and optionally the LDC1J1V1 and

LDPL signals. LDC1J1V1 and LDPL can be included

in the parity calculation by setting the INCLDC1J1V1

and INCLDPL bits in the SONET/SDH Master Ingress

Configuration register high, respectively. Odd parity is

selected by setting the LDOP bit in the Master

SONET/SDH Ingress Configuration register high and

even parity is selected by setting the LDOP bit low.

LDDP is sampled on the rising edge of LREFCLK.

LDC1J1V1

Input

AB6 Line Drop C1/J1 Frame Pulse (LDC1J1V1). The

input C1/J1 frame pulse identifies the transport

envelope and synchronous payload envelope frame

boundaries on the incoming SONET stream.

LDC1J1V1 is set high while LDPL is low to mark the

first C1 byte of the transport envelope frame on the

LDDATA[7:0] bus. LDC1J1V1 is set high while LDPL is

high to mark each J1 byte of the synchronous payload

envelope(s) on the LDDATA[7:0] bus. LDC1J1V1 must

be present at every occurrence of the first C1 and all

J1 bytes.

Optionally LDC1J1V1 indicates multiframe alignment

when high during the first V1 bytes of each envelope.

LDC1J1V1 is sampled on the rising edge of LREFCLK.

LDPL

Input

AB7 Line Drop Bus Payload Active (LDPL). The payload

active signal identifies the bytes on LDDATA[7:0] that

carry payload bytes.

LDPL is set high during path overhead and payload

bytes and low during transport overhead bytes. LDPL

is set high during the H3 byte to indicate a negative

pointer justification and low during the byte following

H3 to indicate a positive pointer justification event.

LDPL is sampled on the rising edge of LREFCLK.

PM5366-PI Datasheet(PDF) 54 Page - PMC-Sierra, Inc

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