PSB21373HV1.1XT Infineon Technologies, PSB21373HV1.1XT Datasheet - Page 60

• Manufacturer Part Number: PSB21373HV1.1XT
• Manufacturer: Infineon Technologies

Specifications of PSB21373HV1.1XT

• Lead Free Status / RoHS Status: Compliant

2.2.7
D-channel access control was defined to guarantee all connected 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. This arbitration mechanism is
implemented in the SCOUT-DX and will be described in the following chapter.
2.2.7.1
The TIC bus is implemented to organize the access to the layer-1 functions provided in
the SCOUT-DX (C/I-channel) and to the D-channel from up to 7 external communication
controllers (see figure 29).
To this effect the outputs of the controllers (ICC:ISDN Communication Controller
PEB 2070) are wired-or 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 MODEH.DIM2-0=00x.
Figure 29
Applications of TIC Bus in IOM-2 Bus Configuration
Data Sheet
D-channel
Telemetry/
Packet
Communication
B-channel
Voice/Data
Communication
with D-channel
Signaling
B-channel
Voice/Data
Communication
with D-channel
Signaling
D-Channel Access Control
TIC Bus D-Channel Access Control
µC-Interface
TIC Bus
D-channel
Access Control
ICC(7)
ICC(1)
IOM-2 Interface
SCOUT-DX
60
Transceiver
Line-Interface
PSB 21373
TIC_ARBI-D
2002-05-13