PEF 82912 F V1.4 Infineon Technologies, PEF 82912 F V1.4 Datasheet - Page 102
PEF 82912 F V1.4
Manufacturer Part Number
PEF 82912 F V1.4
Description
IC MODULAR ISDN NT INTELL TQFP64
Manufacturer
Infineon Technologies
Series
Q-SMINT®r
Specifications of PEF 82912 F V1.4
Function
Second Generation Modular
Interface
ISDN
Mounting Type
Surface Mount
Package / Case
64-LFTQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Voltage - Supply
-
Power (watts)
-
Operating Temperature
-
Number Of Circuits
-
Other names
PEF82912FV1.4XT
PEF82912FV14XP
SP000007558
SP000007559
PEF82912FV14XP
SP000007558
SP000007559
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Note: The test modes ‘Data Through‘ (DT) and ‘Send Single Pulses‘ (SSP) are invoked
Note: If the state machine is in state ’Deactivated’ and the IOM -2 clocks are not
2.4.10.3 Inputs to the U-Transceiver:
C/I-Commands:
AI
AR
ARL
DI
DT
EI1
RES
SSP
Data Sheet
via C/I codes ’DT’ and ’SSP’ according to
forces the U-transceiver into test mode ‘Quiet Mode‘ (QM), i.e. the U-transceiver
is hardware reset.
If the Metallic Loop Termination is used, then the U-transceiver is forced into the
states ‘Reset‘ and ‘Transparent‘ by valid pulse streams on pin MTI according to
Table
running, then the transitions to ’IOM -2 Awaked’ or ’Alerting’ can be invoked by
writing directly the corresponding C/I-code to register UCIW via the µC interface.
Activation Indication
The downstream device issues this indication to announce that its layer-1 is
available. The U-transceiver informs the LT side by setting the “ACT” bit to “1”.
Activation Request
The U-transceiver is requested to start the activation process by sending the wake-
up signal TN.
Activation Request Local Loop-back
The U-transceiver is requested to operate an analog loop-back (close to the U-
interface) and to begin the start-up sequence by sending SN1 (without starting timer
T1). This command may be issued only after the U-transceiver has been HW- or SW-
reset. This eases that the EC- and EQ-coefficient updating algorithms converge
correctly. The ARL-command has to be issued continuously as long as the loop-back
is required.
Deactivation Indication
This indication is used during a deactivation procedure to inform the U-transceiver
that it may enter the deactivated (power-down) state.
Data Through
This unconditional command is used for test purposes only and forces the U-
transceiver into the “Transparent” state.
Error Indication 1
The downstream device indicates an error condition (loss of frame alignment or loss
of incoming signal). The U-transceiver informs the LT-side by setting the ACT-bit to
“0” thus indicating that transparency has been lost.
Reset
Unconditional command which resets the U-transceiver.
Send Single Pulses
Unconditional command which requests the transmission of single pulses on the
U-interface.
29.
88
Table
22. Setting SRES.RES_U to ‘1‘
Functional Description
PEF 82912/82913
2001-03-30
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