ADSP-2181

NOT RECOMMENDED FOR NEW DESIGNS

ADSP-2181

16-bit, 40 MIPS, 5v, 2 Serial Ports, Host Port, 80 KB RAM

NOT RECOMMENDED FOR NEW DESIGNS

ADSP-2181 Functional Block Diagram slide

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Features

25 ns Instruction Cycle Time from 20 MHz Crystal @ 5.0 Volts
40 MIPS Sustained Performance
ADSP-2100 Family Code Compatible, with Instruction Set Extensions
80K Bytes of On-Chip RAM, Configured as 16K Words On-Chip Program Memory RAM and 16K Words On-Chip Data Memory RAM

Dual Purpose Program Memory for Both Instruction and Data Storage
16-Bit Internal DMA Port for High Speed Access to On-Chip Memory
4 MByte Memory Interface for Storage of Data Tables and Program Overlays
8-Bit DMA to Byte Memory for Transparent Program and Data Memory Transfers

Additional Details

The ADSP-2181 is a single-chip microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications.

The ADSP-2181 combines the ADSP-2100 family base architecture(three computational units, data address generators and a program sequencer) with two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, extensive interrupt capabilities, and on-chip program and data memory.

The ADSP-2181 integrates 80K bytes of on-chip memory configured as 16K words (24-bit) of program RAM, and 16K words (16-bit) of data RAM. Power-down circuitry is also provided to meet the low power needs of battery operated portable equipment. The ADSP-2181 is available in 128-pin TQFP and 128- pin PQFP packages.

In addition, the ADSP-2181 supports new instructions, which include bit manipulations-bit set, bit clear, bit toggle, bit test- new ALU constants, new multiplication instruction (x squared), biased rounding, result free ALU operations, I/O memory transfers and global interrupt masking for increased flexibility. Fabricated in a high speed, double metal, low power, CMOS process, the ADSP-2181 operates with a 30 ns instruction cycle time. Every instruction can execute in a single processor cycle. The ADSP-2181's flexible architecture and comprehensive instruction set allow the processor to perform multiple operations in parallel. In one processor cycle the ADSP-2181 can:

Generate the next program address
Fetch the next instruction
Perform one or two data moves
Update one or two data address pointers
Perform a computational operation

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Technical Documents 83

ADSP-2181: 16-bit, 40 MIPS, 5v, 2 serial ports, host port, 80 KB RAM Data Sheet (Rev.D) 02/28/2008

ADSP-2181 EZ-KIT Lite^® Evaluation System Manual (Rev.2.1) 05/04/2004

EE-21: AD1847/ADSP-2181 Daisy Chain Tips & Tricks 09/09/2002

EE-110: A Quick Primer on ELF and DWARF File Formats 05/17/2000

AN-543: High Quality, All-Digital RF Frequency Modulation Generation with the ADSP-2181 and the AD9850 DDS 09/12/2002

AN-543 - Monaural FM Transmitter

AN-543 - Stereo FM Transmitter

EE-128: DSP in C++: Calling Assembly Class Member Functions From C++ 09/18/2002

EE-133: Converting From Legacy Architecture Files To Linker Description Files for the ADSP-218x 09/11/2002

AN-400: Considerations for Selecting a DSP Processor -- Why Buy the ADSP-2181? 09/12/2002

EE-48: Converting Legacy 21xx Systems To A 218x System Design 09/09/2002

EE-79: EPROM Booting In Host Mode with 100 Pin 218x Processors 09/10/2002

AN-227: Digital Control System Design with the ADSP-2100 Family 04/04/2008

AN-334: Digital Signal Processing Techniques 03/08/2008

EE-144: Creating a Master-Slave SPI Interface Between Two ADSP-2191 DSPs 09/12/2002

Associated reference code for EE-144

EE-156: Support for the H.100 protocol on the ADSP-2191 (Rev.0.1) 09/06/2002

EE-168: Using Third Overtone Crystals with the ADSP-218x DSP 10/14/2002

EE-2: Using ADSP-218x I/O Space 09/06/2002

EE-152: Using Software Overlays with the ADSP-219x and VisualDSP 2.0++ 09/11/2002

EE-152 Software Code

EE-261: Understanding Jitter Requirements of PLL-Based Processors (Rev.1) 02/15/2005

EE-188: Using C To Implement Interrupt-Driven Systems On ADSP-219x DSPs 05/02/2003

EE-90: Using the 21xx C-FFT Library 09/10/2002

EE-35: Troubleshooting your ADSP-218x EZ-ICE 10/26/2007

EE-82: Using an ADSP-2181 DSP's IO Space to IDMA Boot Another ADSP-2181 09/10/2002

EE-145: SPI Booting of the ADSP-2191 using the Atmel AD25020N on an EZ-KIT Lite Evaluation Board 09/12/2002

Associated Reference Code for EE-145

EE-103: Performing Level Conversion Between 5v and 3.3v IC's 11/04/1999

EE-64: Setting Mode Pins on Reset 09/10/2002

EE-60: Simulating an RS-232 UART Using the Synchronous Serial Ports on the ADSP-21xx Family DSPs 09/09/2002

EE-121: Porting Code from ADSP-21xx to ADSP-219x 09/11/2002

EE-33: Programming The ADSP-21xx Timer In C 09/09/2002

EE-33 Software Code

EE-104: Setting Up Streams with the VisualDSP Debugger 11/05/1999

EE-104 Software Code

AN-348: Avoiding Passive-Component Pitfalls 02/14/2015

AN-227: Digital Control System Design with the ADSP-2100 Family 01/01/2000

EE-130: Making Fast Transition from ADSP-21xx to ADSP-219x 09/11/2002

EE-249: Implementing Software Overlays on ADSP-218x DSPs with VisualDSP++® (Rev.1) 10/12/2004

EE-249 Software Code

EE-102: Mode D and ADSP-218x Pin Compatibility - the FAQs 09/11/2002

EE-12: Interrupts and Programmable Flags on the ADSP-2185/2186 09/09/2002

EE-32: Language Extensions: Memory Storage Types, ASM & Inline Constructs 03/08/2008

EE-89: Implementing A Software UART on the ADSP-2181 EZ-Kit-Lite 01/01/2000

EE-146: Implementing a Boot Manager for ADSP-218x Family DSPs 10/14/2002

EE-71: Minimum Rise Time Specs for Critical Interrupt and Clock Signals on the ADSP-21x1/21x5 09/10/2002

EE-139: Interfacing the ADSP-2191 to an AD7476 via the SPI Port 09/12/2002

Associated reference code for EE-139

EE-37: How to Interface an LCD to the 21xx and 2106x Family DSP's 09/21/1997

EE-96: Interfacing Two AD73311 Codecs to the ADSP-218x 09/11/2002

EE-39: Interfacing 5V Flash Memory to an ADSP-218x (Byte Programming Algorithm) 09/09/2002

EE-123: An Overview of the ADSP-219x Pipeline 09/11/2002

EE-11: ADSP-2181 Priority Chain & IDMA Holdoffs 09/06/2002

EE-153: ADSP-2191 Programmable PLL 09/06/2002

EE-122: Coding for Performance on the ADSP-219x 09/11/2002

EE-06: ADSP-21xx Serial Port Startup Issues 09/06/2002

EE-124: Booting up the ADSP-2192 09/11/2002

EE-74: Analog Devices Serial Port Development and Troubleshooting Guide 11/04/1999

EE-68: Analog Devices JTAG Emulation Technical Reference (Rev.10) 12/20/2002

EE-227: CAN Configuration Procedure for ADSP-21992 DSPs (Rev.1) 01/26/2004

AN-524: ADV601/ADV611 Bin Width Calculation in ADSP-21xx DSP 12/27/2002

EE-100: ADSP-218x External Overlay Memory 09/11/2002

EE-100 Addendum: PM/DM Overlay and I/O Memory Expansion Board For The ADSP-2181 EZ-Kit Lite

EE-164: Advanced EPROM Boot and No-boot Scenarios with ADSP-219x DSPs 05/02/2003

EE-164 Software Code

EE-36: ADSP-21xx Interface to the IOM-2 bus 09/09/2002

EE-129: ADSP-2192 Interprocessor Communication 09/11/2002

AN-415: ADSP-2181 IDMA Interface to Motorola MC68300 Family of Microprocessors 09/12/2002

EE-4: ADSP-21xx Multi-channel Slot Assignments for the AD1847 09/06/2002

EE-158: ADSP-2181 EZ-Kit Lite IDMA to PC Printer Port Interface 09/06/2002

EE-115: ADSP-2189 IDMA Interface to Motorola MC68300 Family of Microprocessors 09/11/2002

EE-38: ADSP-2181 IDMA Port - Cycle Steal Timing 09/09/2002

EE-131: Booting the ADSP-2191/95/96 DSPs 09/11/2002

EE-154: ADSP-2191 Host Port Interface 10/14/2002

EE-18: Choosing and Using FFTs for ADSP-21xx 09/09/2002

EE-78: BDMA Usage on 100 pin ADSP-218x DSPs Configured for IDMA Use 09/10/2002

ADSP-21xx Legacy Application Notes (Rev.AN-1) 01/01/2000

EE-5: ADSP-218x Full Memory Mode vs. Host Memory Mode 09/06/2002

EE-125: ADSP-218x Embedded System Software Management and In-System-Programming (ISP) 09/11/2002

Associated DSP source code and schematics

EE-226: ADSP-2191 DSP Host Port Booting (Rev.1) 01/26/2004

EE-226 Software Code

EE-142: Autobuffering, C and FFTs on the ADSP-218x 09/12/2002

Associated Reference Code for EE-142

EE-17: ADSP-2187L Memory Organization 09/09/2002

EE-23: An AD1847/ADSP-2181 loopback example using a single index register for SPORT autobuffering 09/09/2002

ADSP-218x DSP Instruction Set Reference (Rev.2.0) 03/08/2008

Documentation Errata

ADSP-218x DSP Hardware Reference (Rev.1.0) 03/10/2008

Documentation Errata

ADSP 21xx Processors: Manuals 02/14/2015

Using the ADSP-2100 Family Volume 2 (Rev.1.0) 03/08/2008

VisualDSP++ 3.5 C/C++ Compiler and Library Manual for ADSP-219x Processors (Rev.4.1) 09/07/2006

VisualDSP++ 3.5 C Compiler and Library Manual for ADSP-218x DSPs (Rev.4.1) 05/13/2011

VisualDSP++ 3.5 Assembler and Preprocessor Manual for ADSP-218x and ADSP-219x DSPs (Rev.1.2) 09/08/2006

VisualDSP++ 3.5 Linker and Utilities Manual for 16-Bit Processors (Rev.1.0) 09/08/2006

ADSP-2181 Anomaly List for Revisions 0.0-4.0 10/09/2002

ADSP-218X Family EZ-ICE Hardware Installation Guide (Rev.1.0) 03/08/2008

Reference Materials 3

Choosing High-Speed Signal Processing Components for Ultrasound Systems 04/01/1995

16-bit Fixed-point DSP with 80 kBytes of RAM 07/01/1994

DSP 101 Part 4: Programming Considerations for Real-time I/O 01/01/1998

Software 2

Software and Tools Anomalies Search

ADSP-218x/219x Code Examples

View Evaluation Software

218X-EMULATOR

EZ-ICE® Serial Emulator for ADSP-218x Processor Family

218X-EMULATOR

EZ-ICE® Serial Emulator for ADSP-218x Processor Family

Features and Benefits

Supports ADI's ADSP-218x family of processors
High speed RS-232 serial port
Shielded enclosure with reset switch accessibility
I/O voltage setting confirmation LEDs
Support for 2.5, 3.3, and 5.0 volt DSPs
CE certified

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Product Detail

The EZ-ICE^® serial emulator system provides state-of-the-art emulation for the ADSP-218x family of processors by providing a controlled environment for observing, debugging, and testing activities in a target system. The EZ-ICE connects directly to the target processor through the emulation interface port. Its ease of use, full speed emulation and shielded board will ensure your design process runs smooth.

The debugger available for ADSP-218x EZ-ICE is Analog Devices' VisualDSP++ development environment. All software is sold separately.

Part Number
ADDS-218X-ICE-2.5V

Tools Support:
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