PEB 2091
PEF 2091
Operational Description
Table 29
Timer
Timers for LT State Machine
Duration
(ms)
Function
State
T1
T2
15000
3
Supervisor for start-up
TL-transmission
Receiver reset
Alerting
Reset for loop
T3
T4
T5
T6
T7
T8
40
Re-transmission of TL
Supervisor SN0 detect
Supervisor EC converge
Supervisor SN2 detect
Hold time
Wait for TN
Awake
6000
1000
6000
40
EC training
EC converge
Receiver reset
24
Delay time for AI detection
Pend.
transparent
T9
40
40
Hold time
Awake error
T10
"DEA" = (0) transmission
Pend. Deactivation
4.4.2.3 Output Signals and Indications in LT Modes
Signals and indications are issued on the IOM®-2-interface (C/I-codes) and U-interface
(predefined U-signals).
C/I-Indications
AI
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 or an
analog loop-back is operated.
AR
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.
DEAC
Deactivation
This indication is issued in response to a DR-code (Pend. Deactivation,
Tear Down) and in the "Test" state (unless PFOFF is active, i.e. PS1 = (1)).
Semiconductor Group
154
Data Sheet 01.99
INFINEON [ Infineon ]
