![](http://datasheet.mmic.net.cn/330000/PM6344-RI_datasheet_16444359/PM6344-RI_30.png)
STANDARD PRODUCT
PMC-Sierra, Inc.
PM6344 EQUAD
PMC-951013
ISSUE 5
QUADRUPLE E1 FRAMER
17
Pin Name
Type
Pin No.
Function
BRSIG[1]
BRSIG[2]
BRSIG[3]
BRSIG[4]
Output
99
100
101
102
Backplane Receive Signaling (BRSIG[4:1]). The
BRSIG[4:1] signals are available on these outputs when
the backplane is configured for single-rail output. Each
BRSIG[x] contains the extracted signaling bits for each
channel in the frame, repeated for the entire
superframe. Each channel's signaling bits are valid in
bit locations 5,6,7,8 of the channel and are channel-
aligned with the BRPCM[x] data stream. When the
ELST is not by-passed or the RCLKOSEL register bit is
not set, the BRSIG[x] stream is aligned to the backplane
timing and is updated on the falling edge of BRCLK.
When the ELST is by-passed or the RCLKOSEL
register bit is set, BRSIG[x] is aligned to the receive line
timing and is updated on the falling edge of the
associated RCLKO[x].
BRDN[1]
BRDN[2]
BRDN[3]
BRDN[4]
Backplane Receive Negative Line Pulse (BRDN[4:1]).
The BRDN[4:1] signals are available on these outputs
when the backplane is configured for dual-rail output.
Each BRDN[x] NRZ output represents the RZ receive
digital negative pulse signal extracted from the input
bipolar signal. BRDN[x] is updated on the falling edge
of the associated RCLKO[x].