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PEB2256HT Datasheet(PDF) 233 Page - Infineon Technologies AG

Part # PEB2256HT
Description  E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications
PDF  490 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

PEB2256HT Datasheet(HTML) 233 Page - Infineon Technologies AG

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FALC56 V1.2
PEB 2256
E1 Registers
Data Sheet
233
2002-08-27
immediately on port RDO by setting the FMR2.SAIS bit. It is
recommended to write the actual value of XC1 into this register
once again, because a write access to register XC1 sets the
read/write pointer of the transmit elastic buffer into its optimal
position to ensure a maximum wander compensation (the write
operation forces a slip).
AXRA
Automatic Transmit Remote Alarm
0 =
Normal operation
1 =
The remote alarm bit is set automatically in the outgoing data
stream if the receiver is in asynchronous state (FRS0.LFA bit is
set). In synchronous state the remote alarm bit is reset.
Additionally
in
multiframe
format
FMR2.RFS1 = 1
and
FMR3.EXTIW = 1 and the 400 ms time-out has elapsed, the
remote alarm bit is active in the outgoing data stream. In
multiframe synchronous state the outgoing remote alarm bit is
cleared.
ALMF
Automatic Loss of Multiframe
0 =
Normal operation
1 =
The receiver searches a new basic- and multiframing if more
than 914 CRC errors have been detected in a time interval of
one second. The internal 914 CRC error counter is reset if the
multiframe synchronization is found. Incrementing the counter
is only enabled in the multiframe synchronous state.
Channel Loop-Back (Read/Write)
Value after reset: 00
H
ECLB
Enable Channel Loop-Back
0 =
Disables the channel loop-back.
1 =
Enables the channel loop-back selected by this register.
CLA(4:0)
Channel Address For Loop-Back
CLA = 0 to 31 selects the channel.
During looped back the contents of the assigned outgoing channel on
ports XL1/XDOP/XOID and XL2/XDON is equal to the idle channel
code programmed at register IDLE.
70
LOOP
ECLB
CLA4
CLA3
CLA2
CLA1
CLA0
(1F)



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