PM6341 datasheet(34/272 Pages) PMC

34 / 272 page

PM6341 E1XC

DATA SHEET

PMC-910419

ISSUE 8

E1 FRAMER/TRANSCEIVER

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

Pin No.

Pin Name

Type

PQFP

PLCC

Function

RCLKO

Output

Recovered PCM Clock Output

(RCLKO). This output signal is the

recovered 2.048 MHz clock,

synchronized to the XCLK signal. The

RCLKO signal is recovered from the

received analog inputs (if the interface

is powered up), from the RDP and

RDN inputs (if the input format is dual-

rail RZ), or from the RCLKI input (if

the input format is NRZ).

RDPCM/

Output

Recovered Decoded PCM (RDPCM).

This output is available when the

E1XC is configured for decoded data

output. This NRZ output signal is the

recovered data stream with HDB3

decoding applied, if HDB3 decoding is

enabled. It is updated on the falling

edge of RCLKO. The RDPCM signal

is not meant to be used when the

digital receive interface is configured

for unipolar operation (RUNI = 1 and

RDIEN = 1), since the data should be

available at the RDD input.

RPCM

Recovered PCM (RPCM). This output

is available when the E1XC is

configured for raw data output. This

NRZ output signal is the recovered

data stream without optional HDB3

decoding applied. It is updated on the

falling edge of RCLKO.

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