pef22504 Infineon Technologies Corporation, pef22504 Datasheet - Page 141
pef22504
Manufacturer Part Number
pef22504
Description
Quad E1/t1/j1 Line Interface Component For Long- And Short-haul Applications Pef 22504 E, Pef 22504 Ht, Version 2.1
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEF22504.pdf
(255 pages)
- Current page: 141 of 255
- Download datasheet (8Mb)
Pulse Count Recovery
PCR
Pulse Count Recovery
Field
PCR
Data Sheet
Bits
7:0
Type
rw
Description
Pulse Count Recovery
A LOS alarm is cleared if a pulse-density is detected in the received bit
stream. The number of pulses M which must occur in the predefined PCD
time interval is programmable by the PCR register and can be calculated
as follows: M = N+1; with 0 N 255.The time interval starts with the first
detected pulse transition. With every received pulse a counter is
incremented and the actual counter is compared to the contents of PCR
register. If the pulse number is higher or equal to the PCR value the LOS
alarm is reset otherwise the alarm stays active. In this case the next
detected pulse transition starts a new time interval.
Offset
xx39
141
H
Register DescriptionPulse Count Recovery
Rev. 1.3, 2006-01-25
QuadLIU
PEF 22504
Reset Value
00
TM
H
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