PM6341 E1XC
DATA SHEET
PMC-910419
ISSUE 8
E1 FRAMER/TRANSCEIVER
Pin Name Type
Pin No.
Function
PQFP PLCC
45 47
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.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
23
PMC [ PMC-SIERRA, INC ]
