PEB 24911 H V1.3 Lantiq, PEB 24911 H V1.3 Datasheet - Page 69

• Manufacturer Part Number: PEB 24911 H V1.3
• Manufacturer: Lantiq

Specifications of PEB 24911 H V1.3

• Lead Free Status / Rohs Status: Supplier Unconfirmed

DR
DT
LTD
RES
RES1
SSP
UAR
Pins
Pin-RES
Pin-SSP
Data Sheet
to ’1’ and the LT indication ’UAI’ switches to ’AR’. As soon as ’DC’ is applied instead of
’UAR’ on the LT side the line is set transparent, since the UOA bit reflects the polarity of
SAI and is thus set to ’1’.
Deactivation Request
This command requests the U-transceiver to start a deactivation procedure by setting the
DEA bit to “0” and to cease transmission afterwards. The DR-code is a conditional
command causing the U-transceiver only to react in the states “Reset”, “Test”, “S/T
Deactivated”, “Line Active”, “Pending Transparent” and “Transparent”, i.e. when the C/I-
channel codes DEAC, UAI, AR, AI, FJ or EI2 are issued on DOUT.
Data Through
This unconditional command is used for test purposes only and forces the U-transceiver
into the transparent state independent of the wake-up protocol. A far-end transceiver
needs not to be connected; in case a far-end transceiver is present it is assumed to be in
the same condition.
LT Disable
This unconditional command forces the U-transceiver to state Test, where it transmits
signal SL0. No further action is initiated.
Reset
Unconditional command which resets the whole chip; note that on contrary to the pin reset
a clock signal must be provided for the C/I code processing.
Reset 1
The reset 1 command resets all receiver functions; especially the EC- and EQ-coefficients
and the AGC are set to zero. The RES1-code does not reset any other than receiver
functions (e.g. IOM
when the U-transceiver has entered a failure condition (expiry of timer T1, loss of framing
or loss of signal level) indicated by the C/I-channel EI3, RSY or LSL on DOUT. Besides
resetting the receiver, this command stops transmission on the U-interface. The DEA bit is
not set to “0” by RES1.
Send Single Pulses
Unconditional command which requests the transmission of single pulses on the
U-interface. The pulses are issued at 1.5 ms intervals and have a duration of 12.5 s.
The chip is transferred to the “Test” state; the receiver will not be reset.
Partial Activation Request (U only)
The U-transceiver is requested to enter power-up state and to start an activation procedure
of the U-interface only.
Pin-Reset
A HW-Reset was applied and released. C/I-message DEAC will be issued in all
channels.
Send Single Pulses
The function of this pin is the same as for the C/I-code SSP in all channels. The C/I-
®
-functions or relay driver settings). The RES1-code should be used
59
Functional Description
PEF 24911
2001-07-16