PSB 21150 F V1.4 Infineon Technologies, PSB 21150 F V1.4 Datasheet - Page 73
PSB 21150 F V1.4
Manufacturer Part Number
PSB 21150 F V1.4
Description
IC MODULAR ISDN NT INTELL TQFP64
Manufacturer
Infineon Technologies
Datasheet
1.PSB_21150_F_V1.4.pdf
(270 pages)
Specifications of PSB 21150 F V1.4
Function
PC Adapter Circuit
Interface
HDLC, ISDN, SCI
Number Of Circuits
1
Voltage - Supply
3.3V
Current - Supply
30mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
64-LFQFP
Includes
Activation and Deactivation, D-Channel Access Control, Monitor Channel Handler
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Other names
PSB21150FV1.4XT
PSB21150FV14NP
PSB21150FV14XP
SP000007575
SP000007577
PSB21150FV14NP
PSB21150FV14XP
SP000007575
SP000007577
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IPAC-X
PSB/PSF 21150
Description of Functional Blocks
3.5
Control of Layer-1
The layer-1 activation/ deactivation can be controlled by an internal state machine via
the IOM-2 C/I0 channel or by software via the microcontroller interface directly. In the
default state the internal layer-1 state machine of the IPAC-X is used. By setting the
L1SW bit in the TR_CONF0 register the internal state machine can be disabled and the
layer-1 commands, which are normally generated by the internal state machine are
written directly in the TR_CMD register or indications read from the TR_STA register
respectively. The IPAC-X layer-1 control flow is shown in
Figure
40.
Figure 40
Layer-1 Control
In the following sections the layer-1 control by the IPAC-X state machine will be
described. For the description of the IOM-2 C/I0 channel see also
Chapter
3.7.4.
The layer-1 functions are controlled by commands issued via the CIX0 register. These
commands, sent over the IOM-2 C/I channel 0 to layer 1, trigger certain procedures,
such as activation/deactivation, switching of test loops and transmission of special pulse
patterns. These procedures are governed by layer-1 state diagrams. Responses from
layer 1 are obtained by reading the CIR0 register after a CIC interrupt (ISTA).
The state diagrams of the IPAC-X are shown in
Figure 42
and
Figure
43. The activation/
deactivation implemented by the IPAC-X agrees with the requirements set forth in ITU
recommendations. State identifiers F1-F8 are in accordance with ITU I.430.
Data Sheet
73
2003-01-30
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