PM7340-PI datasheet(90/334 Pages) PMC

90 / 334 page

PRELIMINARY

INVERSE MULTIPLEXING OVER ATM

PM7340 S/UNI-IMA-8

DATA SHEET

PMC-2001723

ISSUE 3

INVERSE MULTIPLEXING OVER ATM

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

Unusable_link

Force Links to an unusable state and provide

the cause.

For Rx Links, if the cause is inhibited, the links

are taken through the blocking state to preserve

data sent prior the link being inhibited. If the

cause is a fault or a failure condition, the link is

taken directly to the UNUSABLE state. At this

point, data would have already begun to be

discarded due to the defects detected on the

link.

For Tx Links, data will stop being accepted on

the Unusable links and IMA frames will be

generated consisting of filler cells.

Update_test_ptn

Update the TX test pattern info to be sent in the

outgoing ICP cells.

This command is used to activate, deactivate,

or change the test pattern that is being sent out

on the Group.

Update_TX_TRL

Update the transmit TRL.

When a TRL is changed, three steps are

performed: (1) the TRL sent in the ICP cell is

changed;(2) the TRL used for calculating the

IDCC is changed, and (3) the TRL used in the

stuffing algorithm is changed.

Read_event

Read and clear the latched event status, and

read the link/group status of the specified group

and all its links.

The result read from the internal context

memory is stored in Cmd_data00 through

Cmd_data1F. Refer to RIPP Command Data

Registers for further details.

PM7340-PI Datasheet(PDF) 90 Page - PMC-Sierra, Inc

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