Rev. C
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December 2006
ADSP-TS201S
POWER DOMAINS
The ADSP-TS201S processor has separate power supply con-
nections for internal logic (VDD), analog circuits (VDD_A), I/O
buffer (VDD_IO), and internal DRAM (VDD_DRAM) power supply.
Note that the analog (VDD_A) supply powers the clock generator
PLLs. To produce a stable clock, systems must provide a clean
power supply to power input VDD_A. Designs must pay critical
attention to bypassing the VDD_A supply.
FILTERING REFERENCE VOLTAGE AND CLOCKS
and SCLK_VREF. These circuits provide the reference voltages
for the switching voltage reference and system clock reference.
DEVELOPMENT TOOLS
The ADSP-TS201S processor is supported with a complete set
of CROSSCORE
software and hardware development tools,
including Analog Devices emulators and VisualDSP++
devel-
opment environment. The same emulator hardware that
supports other TigerSHARC processors also fully emulates the
ADSP-TS201S processor.
The VisualDSP++ project management environment lets pro-
grammers develop and debug an application. This environment
includes an easy to use assembler (which is based on an alge-
braic syntax), an archiver (librarian/library builder), a linker, a
loader, a cycle-accurate instruction-level simulator, a C/C++
compiler, and a C/C++ run-time library that includes DSP and
mathematical functions. A key point for theses tools is C/C++
code efficiency. The compiler has been developed for efficient
translation of C/C++ code to DSP assembly. The DSP has archi-
tectural features that improve the efficiency of compiled
C/C++ code.
The VisualDSP++ debugger has a number of important
features. Data visualization is enhanced by a plotting package
that offers a significant level of flexibility. This graphical
representation of user data enables the programmer to quickly
determine the performance of an algorithm. As algorithms grow
in complexity, this capability can have increasing significance
on the designer’s development schedule, increasing
productivity. Statistical profiling enables the programmer to
nonintrusively poll the processor as it is running the program.
This feature, unique to VisualDSP++, enables the software
developer to passively gather important code execution metrics
without interrupting the real-time characteristics of the
program. Essentially, the developer can identify bottlenecks in
software quickly and efficiently. By using the profiler, the
programmer can focus on those areas in the program that
impact performance and take corrective action.
Debugging both C/C++ and assembly programs with the
VisualDSP++ debugger, programmers can:
View mixed C/C++ and assembly code (interleaved source
and object information)
Insert breakpoints
Set conditional breakpoints on registers, memory,
and stacks
Trace instruction execution
Perform linear or statistical profiling of program execution
Fill, dump, and graphically plot the contents of memory
Perform source level debugging
Create custom debugger windows
The VisualDSP++ IDE lets programmers define and manage
DSP software development. Its dialog boxes and property pages
let programmers configure and manage all of the TigerSHARC
processor development tools, including the color syntax high-
lighting in the VisualDSP++ editor. This capability permits
programmers to:
Control how the development tools process inputs and
generate outputs
Maintain a one-to-one correspondence with the tool’s
command line switches
The VisualDSP++ Kernel (VDK) incorporates scheduling and
resource management tailored specifically to address the mem-
ory and timing constraints of DSP programming. These
capabilities enable engineers to develop code more effectively,
Figure 6. VREF Filtering Scheme
Figure 7. SCLK_VREF Filtering Scheme
CROSSCORE is a registered trademark of Analog Devices, Inc.
VisualDSP++ is a registered trademark of Analog Devices, Inc.
VDD_IO
VSS
VREF
R1
R2
C1
C2
R1: 2k
SERIES RESISTOR (±1%)
R2: 2.55k
SERIES RESISTOR (±1%)
C1: 1 F CAPACITOR (SMD)
C2: 1nF CAPACITOR (HF SMD) PLACED CLOSE TO DSP’S PINS
CLOCK DRIVER
VOLTAGE OR
VDD_IO
VSS
SCLK_VREF
R1
R2
C1
C2
R1: 2k
SERIES RESISTOR (±1%)
R2: 2.55k
SERIES RESISTOR (±1%)
C1: 1 F CAPACITOR (SMD)
C2: 1nF CAPACITOR (HF SMD) PLACED CLOSE TO DSP’S PINS
*IF CLOCK DRIVER VOLTAGE > V
DD_IO
*