PM6341 E1XC
DATA SHEET
PMC-910419
ISSUE 8
E1 FRAMER/TRANSCEIVER
ROHM
BRXSMFP BRXCMFP Result
0
0
0
Backplane receive frame pulse
output:
BRFPO pulses high for 1 BRCLK
cycle (or 1 RCLKO cycle if ELST is
by-passed) during bit 1 of each
256-bit frame, indicating the frame
alignment of the BRPCM data
stream.
0
0
1
Backplane receive CRC multiframe
output:
BRFPO pulses high for 1 BRCLK
cycle (or 1 RCLKO cycle if ELST is
by-passed) during bit 1 of frame 1
of every 16 frame CRC multiframe,
indicating the CRC multiframe
alignment of the BRPCM data
stream. (Even when CRC
multiframing is disabled, the
BRFPO output continues to
indicate the position of bit 1 of the
th
FAS frame every 16 frame).
0
1
0
Backplane receive signalling
multiframe output:
BRFPO pulses high for 1 BRCLK
cycle (or 1 RCLKO cycle if ELST is
by-passed) during bit 1 of frame 1
of the 16 frame signalling
multiframe, indicating the signalling
multiframe alignment of the
BRPCM data stream. (Even when
signalling multiframing is disabled,
the BRFPO output continues to
indicate the position of bit 1 of
th
every 16 frame.)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
70
PMC [ PMC-SIERRA, INC ]
