PM4354-PI datasheet(97/463 Pages) PMC

97 / 463 page

RELEASED

PM4354 COMET-QUAD

DATASHEET

PMC-1990315

ISSUE 6

FOUR CHANNEL COMBINED E1/T1/J1

TRANSCEIVER / FRAMER

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

Bit

Type

Function

Default

Bit 7

R/W

AUTOYELLOW

Bit 6

R/W

AUTORED

Bit 5

R/W

AUTOOOF

Bit 4

R/W

AUTOAIS

Bit 3

R/W

Reserved

Bit 2

R/W

BPV

Bit 1

R/W

Reserved

Bit 0

R/W

Reserved

Reserved:

These bits must be a logic 0 for normal operation.

AUTOYELLOW:

In T1 mode, when the AUTOYELLOW bit is set to logic 1, whenever the alarm integrator

declares a Red alarm in the receive direction, Yellow alarm will be transmitted to the far end.

When AUTOYELLOW is set to logic 0, Yellow alarm will only be transmitted when the XYEL

bit is set in the T1-XBAS Alarm Transmit Register. Note that the Red alarm is not deasserted

on detection of AIS.

In E1 mode, when the AUTOYELLOW bit is set to logic 1, the RAI bit in the transmit stream is

set to a logic 1 for the duration of a loss of frame alignment or AIS. The G706ANNBRAI bit of

the Transmit Framing and Bypass Options register optionally also allows for the transmission

of RAI when CRC-to-non-CRC interworking has been established. When AUTOYELLOW is

set to logic 0, RAI will only be transmitted when the RAI bit is set in the E1-TRAN Transmit

Alarm/Diagnostic Control register.

AUTORED:

The AUTORED bit allows quadrant trunk conditioning to be applied to the receive data and

signaling streams, BRPCM[x] or MVBRD, and BRSIG[x] or CASBRD, immediately upon

declaration of Red carrier failure alarm. When AUTORED is set to logic 1, the data on

BRPCM[x] or MVBRD for each channel of the quadrant is replaced with the data contained in

the Data Trunk Conditioning registers within RPSC and the signaling on BRSIG[x] or

CASBRD for each channel of the quadrant is replaced with the signaling contained in the

Signaling Trunk Conditioning registers within the RPSC while Red CFA is declared. When

AUTORED is set to logic 0, the receive data and signaling is not automatically conditioned

when Red CFA is declared.

PM4354-PI Datasheet(PDF) 97 Page - PMC-Sierra, Inc

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