ADSP-2186 Analog Devices, ADSP-2186 Datasheet

ADSP-2186

Manufacturer Part Number

ADSP-2186

Description

DSP Microcomputer

Manufacturer

Analog Devices

Datasheet

1.ADSP-2186.pdf (36 pages)

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ICE-Port is a trademark of Analog Devices, Inc.

All trademarks are the property of their respective holders.

REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

FEATURES

PERFORMANCE

25 ns Instruction Cycle Time 40 MIPS Sustained

Single-Cycle Instruction Execution

Single-Cycle Context Switch

3-Bus Architecture Allows Dual Operand Fetches in

Multifunction Instructions

Power-Down Mode Featuring Low CMOS Standby

Low Power Dissipation in Idle Mode

INTEGRATION

ADSP-2100 Family Code Compatible, with Instruction

40K Bytes of On-Chip RAM, Configured as

Dual Purpose Program Memory for Both Instruction

Independent ALU, Multiplier/Accumulator and Barrel

Two Independent Data Address Generators

Powerful Program Sequencer Provides

Programmable 16-Bit Interval Timer with Prescaler

100-Lead LQFP

144-Ball Mini-BGA

SYSTEM INTERFACE

16-Bit Internal DMA Port for High Speed Access to

4 MByte Byte Memory Interface for Storage of Data

8-Bit DMA to Byte Memory for Transparent Program

I/O Memory Interface with 2048 Locations Supports

Programmable Memory Strobe and Separate I/O Memory

Programmable Wait State Generation

Two Double-Buffered Serial Ports with Companding

Performance

Every Instruction Cycle

Power Dissipation with 100 Cycle Recovery from

Power-Down Condition

Set Extensions

8K Words On-Chip Program Memory RAM and

8K Words On-Chip Data Memory RAM

and Data Storage

Shifter Computational Units

Zero Overhead Looping Conditional Instruction

Execution

On-Chip Memory (Mode Selectable)

Tables and Program Overlays

and Data Memory Transfers (Mode Selectable)

Parallel Peripherals (Mode Selectable)

Space Permits “Glueless” System Design

Hardware and Automatic Data Buffering

(Mode Selectable)

GENERAL DESCRIPTION

The ADSP-2186 is a single-chip microcomputer optimized for

digital signal processing (DSP) and other high speed numeric

processing applications.

The ADSP-2186 combines the ADSP-2100 family base archi-

tecture (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-2186 integrates 40K bytes of on-chip memory con-

figured as 8K words (24-bit) of program RAM and 8K words

(16-bit) of data RAM. Power-down circuitry is also provided to

meet the low power needs of battery operated portable equip-

ment. The ADSP-2186 is available in 100-lead LQFP and

144-Ball Mini-BGA packages.

In addition, the ADSP-2186 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 trans-

fers and global interrupt masking for increased flexibility.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

DATA ADDRESS

GENERATORS

DAG 1

Automatic Booting of On-Chip Program Memory from

Six External Interrupts

13 Programmable Flag Pins Provide Flexible System

UART Emulation through Software SPORT Reconfiguration

ICE-Port™ Emulator Interface Supports Debugging

ALU

ARITHMETIC UNITS

ADSP-2100 BASE

Byte-Wide External Memory, e.g., EPROM, or

Through Internal DMA Port

Signaling

in Final Systems

ARCHITECTURE

DAG 2

MAC

SHIFTER

SEQUENCER

FUNCTIONAL BLOCK DIAGRAM

PROGRAM

DATA MEMORY ADDRESS

PROGRAM MEMORY DATA

DATA MEMORY DATA

PROGRAM MEMORY ADDRESS

World Wide Web Site: http://www.analog.com

DSP Microcomputer

PROGRAM

MEMORY

SPORT 0

SERIAL PORTS

POWER-DOWN

MEMORY

CONTROL

SPORT 1

MEMORY

DATA

ADSP-2186

PROGRAMMABLE

TIMER

FLAGS

AND

I/O

FULL MEMORY

CONTROLLER

EXTERNAL

INTERNAL

ADDRESS

HOST MODE

BYTE DMA

DATA

PORT

DMA

BUS

MODE

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