PSB21150FV14NT Infineon Technologies, PSB21150FV14NT Datasheet - Page 128

• Manufacturer Part Number: PSB21150FV14NT
• Manufacturer: Infineon Technologies

Specifications of PSB21150FV14NT

• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / Rohs Status: Not Compliant

3.7.5
D-channel access control is defined to guarantee all connected TEs and HDLC
controllers a fair chance to transmit data in the D-channel. Collisions are possible:
• on the IOM-2 interface if there is more than one HDLC controller connected
or
• on the S-interface when there is more than one terminal connected in a point to
Both arbitration mechanisms are implemented in the IPAC-X and will be described in the
following two chapters.
3.7.5.1
The TIC bus is imlemented to organize the access to the layer-1 functions provided in
the IPAC-X (C/I-channel) and to the D-channel from up to 7 external communication
controllers (see
Note: The TIC Bus can be used in TE/iNT mode only. In other modes it has to be
To this effect the outputs of the D-channel controllers (e.g. ICC - ISDN Communication
Controller PEB 2070) are wired-or (negative logic, i.e. a “0” wins) and connected to pin
DU. The inputs of the ICCs are connected to pin DD. External pull-up resistors on DU/
DD are required. The arbitration mechanism must be activated by setting MODED.DIM2-
0=00x.
Data Sheet
multipoint configuration (NT ® TE1 … TE8).
switched off in order not to disturb the layer-1 control and the HDLC
controller. This is done by setting bit DIM 1 in register Mode D and bit 4 in
register IOM_CR. For more details please refer to the application note
“Reconfigurable PBX”.
D-Channel Access Control
TIC Bus D-Channel Access Control
Figure
72).
128
Description of Functional Blocks
PSB/PSF 21150
2003-01-30
IPAC-X