ADSP-2186L Просмотр технического описания (PDF) - Analog Devices

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ADSP-2186L

DSP Microcomputer

Analog Devices 

ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L

INSTRUCTION SET DESCRIPTION

The ADSP-218xL series assembly language instruction set has

an algebraic syntax that was designed for ease of coding and

readability. The assembly language, which takes full advantage

of the processor’s unique architecture, offers the follow-

ing benefits:

• The algebraic syntax eliminates the need to remember

cryptic assembler mnemonics. For example, a typical arith-

metic add instruction, such as AR = AX0 + AY0, resembles

a simple equation.

• Every instruction assembles into a single, 24-bit word that

can execute in a single instruction cycle.

• The syntax is a superset ADSP-2100 Family assembly lan-

guage and is completely source and object code compatible

with other family members. Programs may need to be

relocated to utilize on-chip memory and conform to the

ADSP-218xL’s interrupt vector and reset vector map.

• Sixteen condition codes are available. For conditional

jump, call, return, or arithmetic instructions, the condition

can be checked and the operation executed in the same

instruction cycle.

• Multifunction instructions allow parallel execution of an

arithmetic instruction, with up to two fetches or one write

to processor memory space, during a single

instruction cycle.

DEVELOPMENT SYSTEM

Analog Devices’ wide range of software and hardware

development tools supports the ADSP-218xL series. The DSP

tools include an integrated development environment, an evalu-

ation kit, and a serial port emulator.

VisualDSP++®† is an integrated development environment,

allowing for fast and easy development, debugging, and deploy-

ment. The VisualDSP++ project management environment lets

programmers develop and debug an application. This environ-

ment includes an easy-to-use assembler that is based on an

algebraic syntax; an archiver (librarian/library builder); a linker;

a PROM-splitter utility; a cycle-accurate, instruction-level simu-

lator; a C compiler; and a C run-time library that includes DSP

and mathematical functions.

Debugging both C and assembly programs with the

VisualDSP++ debugger, programmers can:

• View mixed C and assembly code (interleaved source and

object information)

• Insert break points

• Set conditional breakpoints on registers, memory, and

stacks

• Trace instruction execution

• Fill and dump memory

• Source level debugging

The VisualDSP++ IDE lets programmers define and manage

DSP software development. The dialog boxes and property

pages let programmers configure and manage all of the

ADSP-218xL development tools, including the syntax highlight-

ing in the VisualDSP++ editor. This capability controls how the

development tools process inputs and generate outputs.

The ADSP-2189M EZ-KIT Lite®‡ provides developers with a

cost-effective method for initial evaluation of the powerful

ADSP-218xL DSP family architecture. The ADSP-2189M

EZ-KIT Lite includes a standalone ADSP-2189M DSP board

supported by an evaluation suite of VisualDSP++. With this

EZ-KIT Lite, users can learn about DSP hardware and software

development and evaluate potential applications of the

ADSP-218xL series. The ADSP-2189M EZ-KIT Lite provides an

evaluation suite of the VisualDSP++ development environment

with the C compiler, assembler, and linker. The size of the DSP

executable that can be built using the EZ-KIT Lite tools is lim-

ited to 8K words.

The EZ-KIT Lite includes the following features:

• 75 MHz ADSP-2189M

• Full 16-Bit Stereo Audio I/O with AD73322 Codec

• RS-232 Interface

• EZ-ICE® Connector for Emulator Control

• DSP Demonstration Programs

• Evaluation Suite of VisualDSP++

The ADSP-218x EZ-ICE§ Emulator provides an easier and more

cost-effective method for engineers to develop and optimize

DSP systems, shortening product development cycles for faster

time-to-market. ADSP-218xL series members integrate on-chip

emulation support with a 14-pin ICE-PortTM interface. This

interface provides a simpler target board connection that

requires fewer mechanical clearance considerations than other

ADSP-2100 Family EZ-ICEs. ADSP-218xL series members need

not be removed from the target system when using the EZ-ICE,

nor are any adapters needed. Due to the small footprint of the

EZ-ICE connector, emulation can be supported in final board

designs.The EZ-ICE performs a full range of functions,

including:

• In-target operation

• Up to 20 breakpoints

• Single-step or full-speed operation

• Registers and memory values can be examined and altered

• PC upload and download functions

• Instruction-level emulation of program booting

and execution

† VisualDSP++ is a registered trademark of Analog Devices, Inc.

‡ EZ-KIT Lite is a registered trademark of Analog Devices, Inc.

§ EZ-ICE is a registered trademark of Analog Devices, Inc.

Rev. C | Page 14 of 48 | January 2008

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