PEB24911HV13 Lantiq, PEB24911HV13 Datasheet - Page 72

• Manufacturer Part Number: PEB24911HV13
• Manufacturer: Lantiq

Specifications of PEB24911HV13

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Timer
T3
T4
T5
T6
T7
T8
T9
T10
3.16.2
Signals and indications are issued on the IOM
(predefined U-signals).
C/I-Indications
AI
AR
DEAC
DI
EI2
EI3
LSL
Data Sheet
Outputs of the U-Transceiver in LT-Mode
Activation Indication
This indication signals that “ACT” = 1 has been received and that timer T8 has
elapsed. This indication is not issued in case AR0 is applied to DOUT or an analog
loop-back is operated.
Activation Request
The AR-code signals that a wake-up signal has been received and that a start-up
procedure has commenced. Receiver synchronization has not yet been achieved.
When already partially active (U only activation), AR indicates that the “SAI” bit was
set to (1), i.e. the S/T-interface has become active.
Deactivation
This indication is issued in response to a DR-code (Pend. Deactivation, Tear Down)
and in the “Reset” and “Test” states.
Deactivation Indication
Idle code on the IOM
“Deactivated” state unless an activation procedure is started by the NT-side.
Error Indication 2
EI2 is issued if the received ACT-bit is (0). The NT receiver indicates a loss of signal
or framing on the S/T-interface by setting the upstream ACT-bit to (0). The U-
transceiver remains in the “Transparent” state. After a signal level or framing is
detected again, the C/I-indication AI will be issued anew.
Error Indication 3
This indication is issued when the U-transceiver has not been able to activate
successfully (expiry of timer T1).
Loss of Signal Level
The U-transceiver has entered a failure condition after loss of signal level (LSUE).
Duration (ms) Function
40
6000
1000
6000
40
24
40
40
Re-transmission of TL
Supervisor SN0 detect
Supervisor EC converge
Supervisor SN2 detect
Hold time
Delay time for AI detection
Hold time
“DEA” = (0) transmission
®
-interface. Normally the U-transceiver stays in the
62
®
-2-interface (C/I-codes) and U-interface
Functional Description
State
Wait for TN
Awake
EC training
EC converge
Receiver reset
Pend. transparent
Awake error
Pend. Deactivation
PEF 24911
2001-07-16