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參數(shù)資料
| 型號(hào)： | ADSP-2192 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | DSP Microcomputer |
| 中文描述： | DSP微機(jī) |
| 文件頁數(shù)： | 26/40頁 |
| 文件大?。?/td> | 1307K |
| 代理商： | ADSP-2192 |
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ADSP-2192M
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Instruction Set Description
The ADSP-2192M assembly language instruction set has an
algebraic syntax that was designed for ease of coding and read-
ability. The assembly language, which takes full advantage of the
processor’s unique architecture, offers the following benefits:
ADSP-219x assembly language syntax is a superset of and
source code compatible (except for two data registers and
DAG base address registers) with ADSP-218x family
syntax. Existing 218x programs may need to be restruc-
tured, however, to accommodate the ADSP-2192M’s
unified memory space and to conform to its interrupt
vector map.
The algebraic syntax eliminates the need to remember
cryptic assembler mnemonics. For example, a typical
arithmetic add instruction, such as AR = AX0 + AY0,
resembles a simple equation.
Every instruction, except two, assembles into a single,
24-bit word that can execute in a single instruction cycle.
The exceptions are two dual-word instructions, one of
which writes 16- or 24-bit immediate data to memory,
and the other of which jumps/calls to other pages
in memory.
Multifunction instructions allow parallel execution of an
arithmetic, MAC, or shift instruction with up to two
fetches or one write to processor memory space during a
single instruction cycle.
Supports a wider variety of conditional and unconditional
jumps and calls, and a larger set of conditions on which
to base execution of conditional instructions.
Development Tools
The ADSP-2192M is supported with a complete set of software
and hardware development tools, including Analog Devices
emulators and VisualDSP++
development environment. The
same emulator hardware that supports other ADSP-219x DSPs,
also fully emulates the ADSP-2192M.
The VisualDSP++ project management environment lets pro-
grammers develop and debug an application. This environment
includes an easy to use assembler that is based on an algebraic
syntax; an archiver (librarian/library builder), a linker, a loader,
a cycle-accurate instruction-level simulator, a C/C++ compiler,
and a C/C++ runtime library that includes DSP and mathemat-
ical functions. Two key points for these tools are:
Compiled ADSP-219x C/C++ code efficiency—the
compiler has been developed for efficient translation of
C/C++ code to ADSP-219x assembly. The DSP has
architectural features that improve the efficiency of
compiled C/C++ code.
ADSP-218x family code compatibility—The assembler
has legacy features to ease the conversion of existing
ADSP-218x applications to the ADSP-219x.
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 break points
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
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 ADSP-219x
development tools, including the syntax highlighting in the
VisualDSP++ editor. This capability permits:
Control how the development tools process inputs and
generate outputs.
Maintain a one-to-one correspondence with the tool’s
command line switches.
Analog Devices DSP emulators use the IEEE 1149.1 JTAG test
access port of the ADSP-2192M processor to monitor and
control the target board processor during emulation. The
emulator provides full-speed emulation, allowing inspection and
modification of memory, registers, and processor stacks. Nonin-
trusive in-circuit emulation is assured by the use of the processor’s
JTAG interface—the emulator does not affect target system
loading or timing.
In addition to the software and hardware development tools
available from Analog Devices, third parties provide a wide range
of tools supporting the ADSP-219x processor family. Hardware
tools include ADSP-219x PC plug-in cards. Third party software
tools include DSP libraries, real-time operating systems, and
block diagram design tools.
Designing an Emulator-Compatible DSP Board
(Target)
The White Mountain DSP (Product Line of Analog Devices,
Inc.) family of emulators are tools that every DSP developer
needs to test and debug hardware and software systems. Analog
Devices has supplied an IEEE 1149.1 JTAG Test Access Port
(TAP) on each JTAG DSP. The emulator uses the TAP to access
the internal features of the DSP, allowing the developer to load
code, set breakpoints, observe variables, observe memory, and
examine registers. The DSP must be halted to send data and
commands, but once an operation has been completed by the
emulator, the DSP system is set running at full speed with no
impact on system timing.
To use these emulators, the target’s design must include the
interface between an Analog Devices JTAG DSP and the
emulation header on a custom DSP target board.
VisualDSP++ is a registered trademark of Analog Devices, Inc.
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