psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 88

• Manufacturer Part Number: psb21381
• Description: Siemens Codec With S/t Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
2.3.7.1
In the following sections the layer-1 control by the SCOUT statemachine will be
described. For the description of the IOM-2 C/I0 channel see also chapter 2.2.5.
The layer-1 functions are controlled by commands issued via the C/I channel 0 of the
IOM interface to the layer-1 to trigger certain procedures, such as activation/
deactivation, switching of test loops and transmission of special pulse patterns.
Responses from layer-1 are obtained by indications via the C/I channel 0 of the IOM
interface.
2.3.7.1.1 State Transition Diagram
The activation/deactivation procedure implemented in the SCOUT agrees to the
requirements set forth in ITU recommendations. State identifiers F1-F8 are in
accordance with ITU I.430.
The statemachine includes all information relevant to the user. The state diagram
notation is given in figure 49.
The informations contained in the state diagrams are:
– state name (based on ITU I.430)
– Signal received from the S/T interface (INFO)
– Signal transmitted to the S/T interface (INFO)
– C/I code received (commands)
– C/I code transmitted (indications)
– transition criteria
The transition criteria are grouped into:
– C/I commands
– Signals received from the S/T interface (INFOs)
– Reset
Internal Layer-1 Statemachine
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PSB 21381/2
PSB 21383/4
Interfaces
2001-03-12