PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 371

• Manufacturer Part Number: PSB21473FV13XT
• Manufacturer: Infineon Technologies

Specifications of PSB21473FV13XT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Compliant

20
20.1
The DSP of the INCA-D performs all signal processing tasks of the device. Each signal
processing task is solved by a functional unit called module. The modules can be
combined in any order with almost no restrictions to perform the given tasks.
Beside the Analog Front End the DSP offers two types of interfaces. First, the Data
Interface (CDI) that handles the data accesses from and to the different time slots of the
IOM-2 bus (see also Chapter 17.1.7). Secondly, the Parallel Interface to the DSP
Domain (PIDD) which is actually the interface between CPU and DSP.
Figure 20-1 shows the modules available within the DSP of the INCA-D. They can be
connected to each other or to external components through the 3 codec channels of the
CDI or the microcontroller parallel interface.
Generally, all modules should be enabled only, after all parameters have been
programmed.
For example, if the tone generator shoud be used for ringing, program all parameters of
the tone generator after power up and if you want to start the ringer, enable the tone
generator.
There are some exceptions, which are defined by the internal use of the parameters.
This means that certain parameters can be changed during normal operation, without
the necessity to disable the module first. For example in the speakerphone, the gains
and attenuation SATT1.ATT can be setup on the fly.
Note: The (virtual )DSP registers keep their programmed values after the DSP has been
Data Sheet
set to power-down and subsequently to power-up, if no specific reset value has
been defined for them. Otherwise, the defined reset value will be set, because
after power-down the reset (initialization) routine is invoked.
Digital Signal Processor
Functional Units
371
Digital Signal Processor
PSB 21473
2003-03-31
INCA-D