參數(shù)資料
型號(hào)： ADSP-21478KSWZ-2A
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 5/72頁(yè)
文件大?。?/td> 0K
描述： IC DSP SHARC 266MHZ LP 100LQFP
標(biāo)準(zhǔn)包裝： 1
系列： SHARC®
類(lèi)型： 浮點(diǎn)
接口： DAI，DPI，EBI/EMI，I²C，SPI，SPORT，UART/USART
時(shí)鐘速率： 266MHz
非易失內(nèi)存： ROM（4Mb）
芯片上RAM： 3Mb
電壓 - 輸入/輸出： 3.30V
電壓 - 核心： 1.20V
工作溫度： 0°C ~ 70°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 100-LQFP 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 100-LQFP-EP（14x14）
包裝： 托盤(pán)
Rev. A
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Page 13 of 72
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September 2011
Designing an Emulator-Compatible DSP Board (Target)
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. Nonintrusive in-
circuit emulation is assured by the use of the processor’s JTAG
interface—the emulator does not affect target system loading or
timing. The emulator uses the TAP to access the internal fea-
tures of the processor, allowing the developer to load code, set
breakpoints, observe variables, observe memory, and examine
registers. The processor 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’s JTAG port to the emulator.
For details on target board design issues including mechanical
layout, single processor connections, signal buffering, signal ter-
mination, and emulator pod logic, see the EE-68: Analog Devices
JTAG Emulation Technical Reference on the Analog Devices
website (www.analog.com)—use site search on “EE-68.” This
document is updated regularly to keep pace with improvements
to emulator support.
Evaluation Kit
Analog Devices offers a range of EZ-KIT Lite evaluation plat-
forms to use as a cost effective method to learn more about
developing or prototyping applications with Analog Devices
processors, platforms, and software tools. Each EZ-KIT Lite
includes an evaluation board along with an evaluation suite of
the VisualDSP++ development and debugging environment
with the C/C++ compiler, assembler, and linker. Also included
are sample application programs, power supply, and a USB
cable. All evaluation versions of the software tools are limited
for use only with the EZ-KIT Lite product.
The USB controller on the EZ-KIT Lite board connects the
board to the USB port of the user’s PC, enabling the
VisualDSP++ evaluation suite to emulate the on-board proces-
sor in-circuit. This permits the customer to download, execute,
and debug programs for the EZ-KIT Lite system. It also allows
in-circuit programming of the on-board Flash device to store
user-specific boot code, enabling the board to run as a stand-
alone unit without being connected to the PC.
With a full version of VisualDSP++ installed (sold separately),
engineers can develop software for the EZ-KIT Lite or any cus-
tom defined system. Connecting one of Analog Devices JTAG
emulators to the EZ-KIT Lite board enables high speed, non-
intrusive emulation.
ADDITIONAL INFORMATION
This data sheet provides a general overview of the ADSP-2147x
architecture and functionality. For detailed information on the
family core architecture and instruction set, refer to the SHARC
Processor Programming Reference.
RELATED SIGNAL CHAINS
A signal chain is a series of signal conditioning electronic com-
ponents that receive input (data acquired from sampling either
real-time phenomena or from stored data) in tandem, with the
output of one portion of the chain supplying input to the next.
Signal chains are often used in signal processing applications to
gather and process data or to apply system controls based on
analysis of real-time phenomena. For more information about
this term and related topics, see the “signal chain” entry in the
Glossary of EE Terms on the Analog Devices website.
Analog Devices eases signal processing system development by
providing signal processing components that are designed to
work together well. A tool for viewing relationships between
specific applications and related components is available on the
The Circuits from the LabTM site (www.analog.com/signal
chains) provides:
Graphical circuit block diagram presentation of signal
chains for a variety of circuit types and applications
Drill down links for components in each chain to selection
guides and application information
Reference designs applying best practice design techniques
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