概览
优势和特点
- 指令周期时间：25 ns，20 MHz 晶体（5.0 V）
- 40 MIPS持续性能
- 兼容ADSP-2100系列代码，支持指令集扩展
- 80K字节片内RAM，配置为16K字片内程序存储器RAM和16K字片内数据存储器RAM
- 双用途程序存储器可同时存储指令和数据
- 16位内部DMA端口，支持高速访问片内存储器
- 4 MB存储器接口用于存储数据表和程序覆盖
- 8位DMA-字节存储器，支持程序和数据存储器透明传递
产品详情
ADSP-2181是一款单芯片微电脑产品，针对数字信号处理(DSP)以及其他高速数字处理应用进行了优化。
ADSP-2181将ADSP-2100系列的基础架构（三个计算单元、数据地址生成器和一个程序序列器）与两个串行端口、一个16位内部DMA端口、一个字节DMA端口、一个可编程计时器、标志I/O、广泛的中断功能及片内程序和数据存储器完美地结合起来。
ADSP-2181集成80K字节的片内存储器，其配置为16K字（24位）程序RAM和16K字（16位）数据RAM。同时配有省电电路，以满足采用电池供电的便携式设备的低功耗需求。ADSP-2181采用128引脚TQFP和128引脚PQFP封装。
除此以外，ADSP-2181还支持新的指令，包括位操作（位设置、位清除、位切换、位测试）、新的ALU常数、新的乘法指令（x平方）、偏置舍入、无结果ALU运算、I/O存储器、全局中断屏蔽等，极大地提高了灵活性。ADSP-2181采用高速双层金属低功耗CMOS工艺制成，指令周期时间为30 ns。每条指令均可在单个处理器周期内执行。ADSP-2181拥有灵活的架构和全面的指令集，允许处理器并行执行多个运算。在一个处理器周期中，ADSP-2181能：
- 生成下一个程序地址
- 读取下一条指令
- 执行一次或两次数据移动
- 更新一个或两个数据地址指针
- 执行一次运算
产品分类
产品生命周期
新设计不推荐使用本产品
表示相关产品已过时，ADI公司不再推荐新设计使用。
评估套件 (1)
参考资料
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AN-348: 避开无源元件的陷阱8/16/2013PDF931 kB
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EE-68: JTAG 仿真技术参考 (Rev. 10)5/11/2009PDF306 kB
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AN-227: Digital Control System Design with the ADSP-2100 Family4/4/2008PDF
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EE-32: Language Extensions: Memory Storage Types, ASM & Inline Constructs3/8/2008PDF89 kB
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EE-35: Troubleshooting your ADSP-218x EZ-ICE10/26/2007PDF23 kB
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EE-261: Understanding Jitter Requirements of PLL-Based Processors (Rev. 1)2/15/2005PDF90 kB
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EE-249: Implementing Software Overlays on ADSP-218x DSPs with VisualDSP++® (Rev. 1)10/12/2004PDF60 kB
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• EE-249 Software Code
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EE-227: CAN Configuration Procedure for ADSP-21992 DSPs (Rev. 1)1/26/2004PDF176 kB
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EE-226: ADSP-2191 DSP Host Port Booting (Rev. 1)1/26/2004PDF490 kB
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• EE-226 Software Code
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EE-164: Advanced EPROM Boot and No-boot Scenarios with ADSP-219x DSPs5/2/2003PDF284 kB
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• EE-164 Software Code
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EE-188: Using C To Implement Interrupt-Driven Systems On ADSP-219x DSPs5/2/2003PDF64 K
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AN-524: ADV601/ADV611 Bin Width Calculation in ADSP-21xx DSP12/27/2002PDF84 kB
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EE-154: ADSP-2191 Host Port Interface10/14/2002PDF267 kB
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EE-168: Using Third Overtone Crystals with the ADSP-218x DSP10/14/2002PDF838 kB
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EE-146: Implementing a Boot Manager for ADSP-218x Family DSPs10/14/2002PDF306 kB
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EE-128: DSP in C++: Calling Assembly Class Member Functions From C++9/18/2002PDF172 kB
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EE-145: SPI Booting of the ADSP-2191 using the Atmel AD25020N on an EZ-KIT Lite Evaluation Board9/12/2002PDF570 kB
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• Associated Reference Code for EE-145
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EE-142: Autobuffering, C and FFTs on the ADSP-218x9/12/2002PDF151 kB
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• Associated Reference Code for EE-142
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AN-543: 利用ADSP-2181 DSP和AD9850直接数字频率合成器产生高质量、全数字RF频率调制 (Rev. A)9/12/2002PDF335 kB
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• AN-543 - Stereo FM Transmitter
UNDEFINED -
• AN-543 - Stereo FM Transmitter
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AN-415: ADSP-2181 IDMA Interface to Motorola MC68300 Family of Microprocessors9/12/2002PDF156 kB
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AN-400: Considerations for Selecting a DSP Processor -- Why Buy the ADSP-2181?9/12/2002PDF89 kB
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AN-334: 数字信号处理技术 (Rev. 0)9/12/2002PDF0
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EE-144: Creating a Master-Slave SPI Interface Between Two ADSP-2191 DSPs9/12/2002PDF237 kB
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• Associated reference code for EE-144
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EE-139: Interfacing the ADSP-2191 to an AD7476 via the SPI Port9/12/2002PDF271 kB
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• Associated reference code for EE-139
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EE-152: Using Software Overlays with the ADSP-219x and VisualDSP 2.0++9/11/2002PDF182 kB
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• EE-152 Software Code
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EE-133: Converting From Legacy Architecture Files To Linker Description Files for the ADSP-218x9/11/2002PDF267 kB
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EE-131: Booting the ADSP-2191/95/96 DSPs9/11/2002PDF272 kB
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EE-130: Making Fast Transition from ADSP-21xx to ADSP-219x9/11/2002PDF243 kB
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EE-129: ADSP-2192 Interprocessor Communication9/11/2002PDF237 kB
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EE-125: ADSP-218x Embedded System Software Management and In-System-Programming (ISP)9/11/2002PDF33 kB
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• Associated DSP source code and schematics
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EE-124: Booting up the ADSP-21929/11/2002PDF243 kB
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EE-123: An Overview of the ADSP-219x Pipeline9/11/2002PDF203 kB
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EE-122: Coding for Performance on the ADSP-219x9/11/2002PDF146 kB
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EE-121: Porting Code from ADSP-21xx to ADSP-219x9/11/2002PDF235 kB
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EE-115: ADSP-2189 IDMA Interface to Motorola MC68300 Family of Microprocessors9/11/2002PDF183 kB
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EE-102: Mode D and ADSP-218x Pin Compatibility - the FAQs9/11/2002PDF194 kB
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EE-100: ADSP-218x External Overlay Memory9/11/2002PDF204 kB
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• EE-100 Addendum: PM/DM Overlay and I/O Memory Expansion Board For The ADSP-2181 EZ-Kit Lite
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EE-96: Interfacing Two AD73311 Codecs to the ADSP-218x9/11/2002PDF203 kB
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EE-90: Using the 21xx C-FFT Library9/10/2002PDF204 kB
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EE-82: Using an ADSP-2181 DSP's IO Space to IDMA Boot Another ADSP-21819/10/2002PDF86 kB
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EE-79: EPROM Booting In Host Mode with 100 Pin 218x Processors9/10/2002PDF241 kB
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EE-78: BDMA Usage on 100 pin ADSP-218x DSPs Configured for IDMA Use9/10/2002PDF160 kB
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EE-71: Minimum Rise Time Specs for Critical Interrupt and Clock Signals on the ADSP-21x1/21x59/10/2002PDF186 kB
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EE-64: Setting Mode Pins on Reset9/10/2002PDF119 kB
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EE-60: Simulating an RS-232 UART Using the Synchronous Serial Ports on the ADSP-21xx Family DSPs9/9/2002PDF257 kB
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EE-48: Converting Legacy 21xx Systems To A 218x System Design9/9/2002PDF266 kB
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EE-39: Interfacing 5V Flash Memory to an ADSP-218x (Byte Programming Algorithm)9/9/2002PDF52 kB
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EE-38: ADSP-2181 IDMA Port - Cycle Steal Timing9/9/2002PDF74 kB
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EE-36: ADSP-21xx Interface to the IOM-2 bus9/9/2002PDF46 kB
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EE-33: Programming The ADSP-21xx Timer In C9/9/2002PDF0 kB
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• EE-33 Software Code
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EE-23: An AD1847/ADSP-2181 loopback example using a single index register for SPORT autobuffering9/9/2002PDF22 kB
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EE-21: AD1847/ADSP-2181 Daisy Chain Tips & Tricks9/9/2002PDF11 kB
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EE-18: Choosing and Using FFTs for ADSP-21xx9/9/2002PDF16 kB
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EE-17: ADSP-2187L Memory Organization9/9/2002PDF28 kB
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EE-12: Interrupts and Programmable Flags on the ADSP-2185/21869/9/2002PDF12 kB
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EE-11: ADSP-2181 Priority Chain & IDMA Holdoffs9/6/2002PDF66 kB
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EE-06: ADSP-21xx Serial Port Startup Issues9/6/2002PDF8 kB
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EE-5: ADSP-218x Full Memory Mode vs. Host Memory Mode9/6/2002PDF134 kB
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EE-4: ADSP-21xx Multi-channel Slot Assignments for the AD18479/6/2002PDF7 kB
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EE-2: Using ADSP-218x I/O Space9/6/2002PDF170 kB
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EE-158: ADSP-2181 EZ-Kit Lite IDMA to PC Printer Port Interface9/6/2002PDF459 kB
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EE-156: Support for the H.100 protocol on the ADSP-2191 (Rev. 0.1)9/6/2002PDF184 K
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EE-153: ADSP-2191 Programmable PLL9/6/2002PDF41 kB
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EE-110: A Quick Primer on ELF and DWARF File Formats5/17/2000PDF19 kB
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AN-227: Digital Control System Design with the ADSP-2100 Family1/1/2000PDF671 kB
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EE-89: Implementing A Software UART on the ADSP-2181 EZ-Kit-Lite1/1/2000PDF235 kB
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ADSP-21xx Legacy Application Notes (Rev. AN-1)1/1/2000
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EE-104: Setting Up Streams with the VisualDSP Debugger11/5/1999PDF120 kB
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• EE-104 Software Code
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EE-74: Analog Devices Serial Port Development and Troubleshooting Guide11/4/1999PDF343 kB
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EE-103: Performing Level Conversion Between 5v and 3.3v IC's11/4/1999PDF206 kB
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EE-37: How to Interface an LCD to the 21xx and 2106x Family DSP's9/21/1997PDF19 kB
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ADSP-2181 EZ-KIT Lite® Evaluation System Manual (Rev. 2.1)5/4/2004PDF887 kB
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ADSP 21xx Processors: Manuals2/14/2015
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ADSP-218x DSP Hardware Reference (Rev. 1.0)3/10/2008ZIP2439 kB
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Documentation Errata
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Using the ADSP-2100 Family Volume 2 (Rev. 1.0)3/8/2008ZIP2219 kB
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ADSP-218x DSP Instruction Set Reference (Rev. 2.0)3/8/2008PDF5767 kB
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Documentation Errata
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VisualDSP++ 3.5 C Compiler and Library Manual for ADSP-218x DSPs (Rev. 4.1)5/13/2011PDF4912 kB
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VisualDSP++ 3.5 Assembler and Preprocessor Manual for ADSP-218x and ADSP-219x DSPs (Rev. 1.2)9/8/2006PDF1223 kB
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VisualDSP++ 3.5 Linker and Utilities Manual for 16-Bit Processors (Rev. 1.0)9/8/2006PDF4739 kB
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VisualDSP++ 3.5 C/C++ Compiler and Library Manual for ADSP-219x Processors (Rev. 4.1)9/7/2006PDF3209 kB
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ADSP-2181 Anomaly List for Revisions 0.0-4.010/9/2002PDF
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ADSP-218X Family EZ-ICE Hardware Installation Guide (Rev. 1.0)3/8/2008PDF113 kB
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近乎完美的DDS正弦波信号音生成器12/1/2019
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DSP 101 Part 4: Programming Considerations for Real-time I/O1/1/1998 模拟对话
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为超声系统选择高速信号处理元件4/1/1995 模拟对话
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16-bit Fixed-point DSP with 80 kBytes of RAM7/1/1994 模拟对话
