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參數資料
| 型號： | ADSP-21990 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數字信號處理 |
| 英文描述： | 16-bit fixed point DSP with Flash |
| 中文描述： | 具有閃存的 16 位定點 DSP |
| 文件頁數： | 14/44頁 |
| 文件大小： | 574K |
| 代理商： | ADSP-21990 |
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ADSP-21990
–14–
REV. 0
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++ IDDE 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 color syntax highlighting 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
command line switches of the tool.
The VisualDSP++ Kernel (VDK) incorporates scheduling and
resource management tailored specifically to address the memory
and timing constraints of DSP programming. These capabilities
enable engineers to develop code more effectively, eliminating the
need to start from the very beginning, when developing new
application code. The VDK features include Threads, Critical
and Unscheduled regions, Semaphores, Events, and Device flags.
The VDK also supports Priority-based, Preemptive, Coopera-
tive, and Time-Sliced scheduling approaches. In addition, the
VDK was designed to be scalable. If the application does not use
a specific feature, the support code for that feature is excluded
from the target system.
Because the VDK is a library, a developer can decide whether to
use it or not. The VDK is integrated into the VisualDSP++ devel-
opment environment, but can also be used via standard
command line tools. When the VDK is used, the development
environment assists the developer with many error-prone tasks
and assists in managing system resources, automating the gener-
ation of various VDK based objects, and visualizing the system
state, when debugging an application that uses the VDK.
VCSE is Analog Devices technology for creating, using, and
reusing software components (independent modules of substan-
tial functionality) to quickly and reliably assemble software
applications. Download components from the Web and drop
them into the application. Publish component archives from
within VisualDSP++. VCSE supports component implementa-
tion in C/C++ or assembly language.
Use the Expert Linker to visually manipulate the placement of
code and data on the embedded system. View memory utilization
in a color-coded graphical form, easily move code and data to
different areas of the DSP or external memory with the drag of
the mouse, examine run time stack and heap usage. The Expert
Linker is fully compatible with existing Linker Definition File
(LDF), allowing the developer to move between the graphical
and textual environments.
Analog Devices DSP emulators use the IEEE 1149.1 JTAG Test
Access Port of the ADSP-21990 processor to monitor and control
the target board processor during emulation. The emulator
provides full speed emulation, allowing inspection and modifica-
tion of memory, registers, and processor stacks. Nonintrusive
in-circuit emulation is assured by the use of the processor JTAG
interface—target system loading and timing are not affected by
the emulator.
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 DSP 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
The Analog Devices 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 board must include a header
that connects the DSP JTAG port to the emulator.
For details on target board design issues including mechanical
layout, single processor connections, multiprocessor scan chains,
signal buffering, signal termination, and emulator pod logic, see
the
EE-68: Analog Devices
J
TAG Emulation Technical Reference
on
www.analog.com)—use site search
on “EE-68.” This document is updated regularly to keep pace
with improvements to emulator support.
Additional Information
This data sheet provides a general overview of the ADSP-21990
architecture and functionality. For detailed information on the
ADSP-21990 embedded DSP core architecture, instruction set,
communications ports and embedded control peripherals, refer
to the
ADSP-2199x Mixed Signal DSP Controller Hardware
Reference
.
PIN FUNCTION DESCRIPTIONS
ADSP-21990 pin definitions are listed in
Table 4
. All ADSP-
21990 inputs are asynchronous and can be asserted asynchro-
nously to CLKIN (or to TCK for
TRST
).
Unused inputs should be tied or pulled to V
DDEXT
or GND, except
for ADDR21–0, DATA15–0, PF7-0, and inputs that have
internal pull-up or pull-down resistors (
TRST
, BMODE0,
BMODE1, BMODE2, BYPASS, TCK, TMS, TDI, PWMPOL,
PWMSR
, and
RESET
)—these pins can be left floating. These
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相關代理商/技術參數 |
參數描述 |
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| ADSP-21990BBC | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 150MHz 150MIPS 196-Pin Mini-BGA 制造商:Rochester Electronics LLC 功能描述:160 MIPS, MIXED SIGNAL DSPWITH 14-BIT - Bulk |
| ADSP-21990BST | 制造商:Rochester Electronics LLC 功能描述:160 MIPS,MIXED SIGNAL DSP WITH 14BIT - Tape and Reel |
| ADSP-21990BSTZ | 功能描述:IC DSP CONTROLLER 16BIT 176-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數字式信號處理器） 系列:ADSP-21xx 標準包裝:2 系列:StarCore 類型:SC140 內核 接口:DSI，以太網，RS-232 時鐘速率:400MHz 非易失內存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，FCBGA 供應商設備封裝:431-FCPBGA（20x20） 包裝:托盤 |
| ADSP-21991BBC | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 150MHz 150MIPS 196-Pin Mini-BGA |
| ADSP-21991BBCZ | 功能描述:IC DSP CTLR 16BIT 196CSPBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數字式信號處理器） 系列:ADSP-21xx 標準包裝:2 系列:StarCore 類型:SC140 內核 接口:DSI，以太網，RS-232 時鐘速率:400MHz 非易失內存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，FCBGA 供應商設備封裝:431-FCPBGA（20x20） 包裝:托盤 |
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