PM6341 E1XC
DATA SHEET
PMC-910419
ISSUE 8
E1 FRAMER/TRANSCEIVER
Pin Name Type
Pin No.
Function
PQFP PLCC
76
BTSIG/
Input
7
Backplane Transmit Signalling
(BTSIG). When the backplane is
configured for single-rail input, the
BTSIG input signal contains the
signalling bits for each timeslot in the
transmit data frame, repeated for the
entire signalling multiframe. Each
timeslot's signalling bits are in bit
locations 5,6,7,8 of the timeslot and
are timeslot-aligned with the BTPCM
data stream. BTSIG is sampled on
the rising edge of BTCLK.
BTDN
Backplane Transmit Negative Line
Pulse (BTDN). When the backplane is
configured for dual-rail input, the
BTDN input by-passes the transmitter
and is fed directly into the DJAT.
BTDN is sampled on the rising edge
of BTCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
27
PMC [ PMC-SIERRA, INC ]
