PM7346 datasheet(136/419 Pages) PMC

136 / 419 page

PM7346 S/UNI-QJET

DATASHEET

PMC-960835

ISSUE 6

SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3

PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 115

Bit

Type

Function

Default

Bit 7

Unused

Bit 6

LSS[2]

Bit 5

LSS[1]

Bit 4

LSS[0]

Bit 3

Unused

Bit 2

YELV

Bit 1

LOFV

Bit 0

OOFV

OOFV:

The OOFV bit indicates the current PLCP out of frame defect state. When an

error is detected in both the A1 and A2 octets or when an error is detected in

two consecutive path overhead identifier octets, OOFV is set to logic 1. When

the S/UNI-QJET has found two valid, consecutive sets of A1 and A2 octets

with two valid and sequential path overhead identifier octets, the OOFV bit is

set to logic 0.

LOFV:

The LOFV bit indicates the current PLCP loss of frame defect state. The loss

of frame defect state is an integrated version of the out of frame defect state.

The declaration/removal times for the loss of frame defect state depends on

the selected PLCP format, and are summarized in the table below:

Table 8

- PLCP LOF Declaration/Removal Times

PLCP Format

Declaration (ms)

Removal (ms)

DS3

E3 G.751

1.12

DS1

250

200

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