pef80913 Infineon Technologies Corporation, pef80913 Datasheet - Page 85

• Manufacturer Part Number: pef80913
• Description: 2b1q Second Gen. Modular Isdn Nt
• Manufacturer: Infineon Technologies Corporation

2.4.3.3
The EOC operating modes are programmable in the MFILT register (see
Chapter
EOC Auto Mode
– Acknowledgement: All received EOC-frames are echoed back to the exchange
– Latching: All detected EOC-commands, i.e. LBBD, RCC etc., are latched. Multiple
– Reporting: With the triple-last-look criterion fulfilled the new EOC-command will be
– Execution: The EOC-commands listed in
EOC Transparent Mode 6 ms
– Acknowledgement: There is no automatic acknowledgement in transparent mode.
– Latching: No latching is performed due to no execution.
– Reporting: The received EOC-frame is reported to the µC by an interrupt every 6 ms.
– Execution: No automatic execution in transparent modes. The appropriate actions
Data Sheet
immediately without triple-last-look. If an address other than (000)
received, a HOLD message with address (000)
exception: The Q-SMINT I will send a ’UTC’ after three consecutive receptions of d/
m = 0 or after an undefined command.
subsequent valid EOC-commands are executed in parallel, as long as they are not
disabled with the EOC ’RTN’ command or a deactivation.
reported by an interrupt, independently of the address used and the status of the d/m
indicator. The triple last look criterion implies that the new verified message is different
to the last TLL-verified message.
the U-transceiver if they were addressed correctly (000
set to message (1). The execution of a command is performed only after the “triple-
last-look” criterion is met.
Therefore the external µC has to perform the EOC-Procedure. 2 msec must be
available for the report and the subsequent access of the transmit EOC data of the
next outgoing EOC-frame.
Verification, acknowledgment and execution of the received command have to be
initiated by an external controller. The µC can program back all defined test functions
(close/open loops, send corrupted CRCs). In the transmit direction, the last written
EOC-code from the µC is used.
can be programmed by the µC.
4.11.2)
EOC Operating Modes
71
Table 16
B
is returned. However there is an
will be executed automatically by
B
or 111
Functional Description
B
) and the d/m bit was
PEF 82912/82913
B
or (111)
2001-03-30
B
is