peb3456e Infineon Technologies Corporation, peb3456e Datasheet - Page 91
peb3456e
Manufacturer Part Number
peb3456e
Description
Channelized T3 Termination, With Ds3 Framer, M13 Multiplexer, T1/e1 Framers And 256-channel Hdlc/ppp Controller
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEB3456E.pdf
(424 pages)
- Current page: 91 of 424
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Synchronous state is established after detecting:
• a correct FAS word in frame n,
• the presence of the correct service word (bit 2 = 1) in frame n + 1,
• a correct FAS word in frame n + 2.
If the service word in frame n + 1 or the FAS word in frame n + 2 or both are not found
searching for the next FAS word will be start in frame n + 2 just after the previous frame
alignment signal.
Reaching the asynchronous state causes the removal of FSR.LFA and additionally an
interrupt vector with LFA bit reset (if not masked). Undisturbed operation starts with the
beginning of the next doubleframe.
4.7.1.2
If the TE3-CHATT detects a remote alarm indication in the received data stream the
interrupt status bit FRS.RRA will be set.
By setting TFMR.AXRA the TE3-CHATT automatically transmits the remote alarm
bit = 1 in the outgoing data stream if the receiver detects a loss of frame alignment
FRS.LFA = 1. If the receiver is in synchronous state FRS.LFA = 0 the remote alarm bit
will be reset.
4.7.1.3
The TE3-CHATT allows access to the S
Data Sheet
A-bit Access
S
a
-bit Access
a
-bits via registers RSAW1-3 and XSAW1-3.
91
Functional Description
PEB 3456 E
05.2001
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