PM5347 datasheet(35/302 Pages) PMC

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PM5347 S/UNI-PLUS

DATA SHEET

PMC-941033

ISSUE 6

SATURN USER NETWORK INTERFACE PLUS

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

Pin Name

Type

No.

Function

LRDI

Output

175

The line remote defect indication (LRDI) signal is

set high when line RDI is declared. This occurs

when a 110 binary pattern is detected in bits 6, 7,

and 8 of the K2 byte for three or five consecutive

frames (as selected in the RLOP Control/Status

other than 110 is detected in bits 6, 7, and 8 of

the K2 byte for three or five consecutive frames.

This alarm indication is also available via register

access. LRDI is updated on the falling edge of

GROCLK.

LOP

Output

182

The loss of pointer (LOP) signal is set high when

loss of pointer is declared. This occurs when a

valid pointer (H1, H2) is not found in eight

consecutive frames, or if eight consecutive new

data flags are detected. LOP is removed when

the same valid and normal pointer with a normal

new data flag is detected in three consecutive

frames. The loss of pointer state is not entered if

the receive stream contains path AIS. This alarm

indication is also available via register access.

LOP is updated on the falling edge of GROCLK.

PAIS

Output

180

The path AIS (PAIS) signal is set high when path

AIS is declared. This occurs when an all ones

pattern is observed in the pointer bytes (H1, H2)

for three consecutive frames. Path AIS is

removed when the same valid and normal pointer

is detected for three consecutive frames or a legal

pointer with an active new data flag (NDF) is

received. This alarm indication is also available

via register access. PAIS is updated on the falling

edge of GROCLK.

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