PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
Figure 8
- E1 Jitter Tolerance Specification (ALGSEL = 0)
Measurement Limit
Measured
10
CDRC Jitter
Tolerance
(ALGSEL = 0)
1.0
G823 Jitter
Tolerance
Specification
0.1
0.01
.
Jitter Frequence (Hz)
9.2
Pulse Density Violation Detector (PDVD)
The Pulse Density Violation Detection function is provided by the PDVD block.
This block detects pulse density violations of the ANSI T1.403 requirement that
there be N ones in each and every time window of 8(N+1) data bits (where N can
equal 1 through 23). The PDVD also detects periods of 16 consecutive zeros in
the incoming data. Pulse density violation detection is provided through an
internal register bit. An interrupt is generated to signal a 16 consecutive zero
event or a change of state on the pulse density violation indication.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
43
PMC [ PMC-SIERRA, INC ]
