peb3456e Infineon Technologies Corporation, peb3456e Datasheet - Page 140

• 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

LLBS
PRBS
T400
CRC
PDEN/AUX
FAS
MFAS
PORT
Data Sheet
Line Loopback Status
The ‘Line Loopback Status’ interrupt vector is generated, whenever the
TE3-CHATT detects a change in either the line loopback deactuation
signal or the line loopback actuate signal. The actual state of the signals
is shown in FRS.LLBDD and FRS.LLBAD.
PRBS Status
The ’PRBS Status’ interrupt vector is generated, whenever the TE3-
CHATT synchronization state of the PRBS receiver changes. The actual
state of the receiver, i.e. synchronized/not synchronized, is shown in
FRS.PRBS.
400 Millisecond
This interrupt vector is generated when the framer has found the double
framing (basic framing) and is searching for the multiframing. This
interrupt vector will be generated to indicate that no multiframing could
be found within a time window of 400 ms after basic framing has been
achieved. In multiframe synchronous state this interrupt will not be
generated.
Receive CRC Error
This interrupt vector is generated, when the CRC-6 checksum of an T1
ESF multiframe or the CRC-4 checksum of an E1 CRC-4 multiframe was
incorrect.
This interrupt vector is generated, whenever the TE3-CHATT detects a
change in bit FRS.PDEN/AUX. Bit PDEN/AUX is set whenever bit
FRS.PDEN.AUX toggles.
Frame Alignment Status
The ’Frame Alignment Status’ interrupt vector is generated, whenever
the TE3-CHATT detects a change in frame alignment. The actual state,
i.e. aligne/not aligned, is shown in bit FRS.LFA.
Multiframe Alignment Status
The ’Multiframe Alignment Status’ interrupt vector is generated,
whenever the TE3-CHATT detects a change in multiframe alignment.
The actual state, i.e. aligned/not aligned, is shown in bit FRS.LMFA.
Port Number
0..27 The port number the interrupt vector is associated with.
Pulse Density Violation Detected / Auxiliary Pattern Detected
140
Functional Description
PEB 3456 E
05.2001