PM6341 datasheet(39/272 Pages) PMC

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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

BRSIG/

Output

Backplane Receive Signalling

(BRSIG). The BRSIG signal is

available on this output when the

backplane is configured for single-rail

output. BRSIG contains the extracted

signalling bits for each timeslot in the

frame, repeated for the entire

signalling multiframe. Each timeslot's

signalling bits are valid in bit locations

5,6,7,8 of the timeslot and are

timeslot-aligned with the BRPCM data

stream. When the ELST is not by-

passed, the BRSIG stream is aligned

to the backplane timing and is

updated on the falling edge of

BRCLK. When the ELST is by-

passed, BRSIG is aligned to the

receive line timing and is updated on

the falling edge of RCLKO.

BRDN

Backplane Receive Negative Line

Pulse (BRDN). The BRDN signal is

available on this output when the

backplane is configured for dual-rail

output. The BRDN NRZ output

represents the RZ receive digital

negative pulse signal extracted from

the input bipolar signal. BRDN is

updated on the falling edge of

RCLKO.

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