PM7344 datasheet(164/293 Pages) PMC

164 / 293 page

PM7344 S/UNI-MPH

DATA SHEET

PMC-950449

ISSUE 6

MULTI-PHY USER NETWORK INTERFACE

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

148

Registers 041H, 141H, 241H and 341H: T1-TRAN Alarm Transmit

Bit

Type

Function

Default

Bit 7

Unused

Bit 6

Unused

Bit 5

Unused

Bit 4

Unused

Bit 3

Unused

Bit 2

Unused

Bit 1

R/W

XYEL

Bit 0

R/W

XAIS

These registers control the transmission of T1 yellow or AIS Carrier Failure

Alarms (CFA).

XYEL:

The XYEL bit enables the TRAN to generate a yellow alarm in the appropriate

framing format. When XYEL is set to logic 1, the TRAN is enabled to set bit 2

of each channel to logic 0 for SF format and to transmit repetitions of

1111111100000000 (the yellow alarm bit oriented code) on the facility data link

for ESF format. When XYEL is set to logic 0, the TRAN is disabled from

generating the yellow alarm.

XAIS:

The XAIS bit enables the TRAN to generate an unframed all-ones AIS alarm.

When XAIS is set to logic 1, the TDP/TDN[x] outputs are forced to pulse

alternately, creating an all-ones signal. When XAIS is set to logic 0, the

TDP/TDN[x] outputs operate normally.

PM7344 Datasheet(PDF) 164 Page - PMC-Sierra, Inc

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