ADSP-2187NKCA-320 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADSP-2187NKCA-320

DSP Microcomputer

Analog Devices 

ADSP-218xN Series

GENERAL DESCRIPTION

The ADSP-218xN series consists of six single chip micro-

computers optimized for digital signal processing applica-

tions. The high-level block diagram for the ADSP-218xN

series members appears on the previous page. All series

members are pin-compatible and are differentiated solely by

the amount of on-chip SRAM. This feature, combined with

ADSP-21xx code compatibility, provides a great deal of

flexibility in the design decision. Specific family members

are shown in Table 1.

Table 1. ADSP-218xN DSP Microcomputer Family

Device

ADSP-2184N

ADSP-2185N

ADSP-2186N

ADSP-2187N

ADSP-2188N

ADSP-2189N

Program

Memory

(K Words)

4

16

8

32

48

32

Data Memory

(K Words)

4

16

8

32

56

48

ADSP-218xN series members combine 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 capa-

bilities, and on-chip program and data memory.

ADSP-218xN series members integrate up to 256K bytes

of on-chip memory configured as up to 48K words (24-bit)

of program RAM, and up to 56K 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-218xN is available in a 100-lead LQFP package

and 144-Ball Mini-BGA.

Fabricated in a high-speed, low-power, 0.18 µm CMOS

process, ADSP-218xN series members operate with a

12.5 ns instruction cycle time. Every instruction can

execute in a single processor cycle.

The ADSP-218xN’s flexible architecture and comprehen-

sive instruction set allow the processor to perform multiple

operations in parallel. In one processor cycle, ADSP-218xN

series members 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

VisualDSP++ and EZ-KIT Lite are trademarks of Analog Devices, Inc.

This takes place while the processor continues to:

• Receive and transmit data through the two serial ports

• Receive and/or transmit data through the

internal DMA port

• Receive and/or transmit data through the byte DMA port

• Decrement timer

DEVELOPMENT SYSTEM

Analog Devices’ wide range of software and hardware

development tools supports the ADSP-218xN series. The

DSP tools include an integrated development environment,

an evaluation kit, and a serial port emulator.

VisualDSP++™ is an integrated development environment,

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

ment. The VisualDSP++ project management environment

lets programmers develop and debug an application. This

environment includes an easy-to-use assembler that is based

on an algebraic syntax; an archiver (librarian/library build-

er); a linker; a PROM-splitter utility; a cycle-accurate,

instruction-level simulator; 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-218xN development tools, including the

syntax highlighting in the VisualDSP++ editor. This capa-

bility 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-218xN DSP family architecture. The

ADSP-2189M EZ-KIT Lite includes a stand-alone 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 evalu-

ate potential applications of the ADSP-218xN 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

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

limited to 8K words.

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