PM7346 datasheet(185/419 Pages) PMC

185 / 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 164

Bit

Type

Function

Default

Bit 7

Unused

Bit 6

Unused

Bit 5

R/W

WORDBIP

Bit 4

R/W

Reserved

Bit 3

R/W

WORDERR

Bit 2

R/W

PYLD&JUST

Bit 1

R/W

FERFDET

Bit 0

R/W

TMARKDET

TMARKDET:

The TMARKDET bit determines the persistency check performed on the

Timing Marker bit (bit 8 of the G.832 Maintenance and Adaptation byte).

When TMARKDET is logic 1, the Timing Marker bit must be in the same state

for 5 consecutive frames before the TIMEMK status is changed to that state.

When TMARKDET is logic 0, the Timing Marker bit must be in the same state

for 3 consecutive frames. When a framing mode other than G.832 is

selected, the setting of the TMARKDET bit is ignored.

FERFDET:

The FERFDET bit determines the persistency check performed on the Far

End Receive Failure (FERF) bit (bit 1 of the G.832 Maintenance and

Adaptation byte) or on the Remote Alarm indication (RAI) bit (bit 11 of the

frame in G.751 mode). When FERFDET is logic 1, the FERF, or RAI, bit must

be in the same state for 5 consecutive frames before the FERF/RAI status is

changed to that state. When FERFDET is logic 0, the FERF, or RAI, bit must

be in the same state for 3 consecutive frames.

PYLD&JUST:

The PYLD&JUST bit selects whether the justification service bits and the

tributary justification bits in framing mode G.751 is indicated as overhead or

payload. When PYLD&JUST is logic 1, the justification service bits and the

tributary justification bits are indicated as payload to the SPLR. When

PYLD&JUST is logic 0, the justification service and tributary justification bits

PM7346 Datasheet(PDF) 185 Page - PMC-Sierra, Inc

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