PM7347 datasheet(135/341 Pages) PMC

135 / 341 page

S/UNI®-JET Data Sheet

Released

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use

135

Document ID: PMC-1990267, Issue 3

Bit

Type

Function

Default

Bit 7

R/W

ACE

Bit 6

REDV

Bit 5

CBITV

Bit 4

FERFV

Bit 3

IDLV

Bit 2

AISV

Bit 1

OOFV

Bit 0

LOSV

The LOSV bit indicates the current LOS defect state. LOSV is a logic one when a sequence

of 175 zeros is detected on the B3ZS encoded DS3 receive stream. LOSV is a logic zero

when a signal with a ones density greater than 33% for 175 ± 1 bit periods is detected.

OOFV

The OOFV bit indicates the current DS3 OOF defect state. When the S/UNI-JET has lost

frame alignment and is searching for the new alignment, OOFV is set to logic one. When the

S/UNI-JET has found frame alignment, the OOFV bit is set to logic zero.

AISV

The AISV bit indicates the AIS state. When the S/UNI-JET detects the AIS maintenance

signal, AISV is set to logic one.

IDLV

The IDLV bit indicates the IDLE signal state. When the S/UNI-JET detects the IDLE

maintenance signal, IDLV is set to logic one.

FERFV

The FERFV bit indicates the current far end receive failure defect state. When the S/UNI-JET

detects an M-frame with the X1 and X2 bits both set to zero, FERFV is set to logic one.

When the S/UNI-JET detects an M-frame with the X1 and X2 bits both set to one, FERFV is

set to logic zero.

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