PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 216

• Manufacturer Part Number: PM5366-PI
• Description: HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
• Manufacturer: PMC-Sierra, Inc.

PRELIMINARY
DATASHEET
PMC-2010672
13
13.1 DS3 Line Side Interface Timing
PROPRIETARY AND CONFIDENTIAL
FUNCTIONAL TIMING
All functional timing diagrams assume that polarity control is not being applied to
input and output data and clock lines (i.e. polarity control bits in the TEMAP-84
registers are set to their default states).
Figure 33
The Receive Bipolar DS3 Stream diagram (Figure 33) shows the operation of the
TEMAP-84 while processing a B3ZS encoded DS3 stream on inputs RPOS and
RNEG. It is assumed that the first bipolar violation (on RNEG) illustrated
corresponds to a valid B3ZS signature. A line code violation is declared upon
detection of three consecutive zeros in the incoming stream, or upon detection of
a bipolar violation which is not part of a valid B3ZS signature.
Figure 34
The Receive Unipolar DS3 Stream diagram (Figure 34) shows the complete DS3
receive signal on the RDAT input. Line code violation indications, detected by an
upstream B3ZS decoder, are indicated on input RLCV. RLCV is sampled each
bit period. The PMON Line Code Violation Event Counter is incremented each
time a logic 1 is sampled on RLCV.
RDATI[x]
RCLK[x]
RLCV[x]
RPOS[x]
RNEG[x]
RCLK[x]
X1 BIT
- Receive Bipolar DS3 Stream
- Receive Unipolar DS3 Stream
INFO 1
ISSUE 1
INF O 84
X2 BIT
OR P OR M BIT
204
INFO 84
C BIT
3 consec 0s
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
OR F BIT
INF O 1
INFO 2
LCV
INFO 3
AND M13 MULTIPLEXER
LCV INDICATION
PM5366 TEMAP-84
INFO 4
INFO 5