ADSP-2181屬于集成電路（IC）的DSP（數(shù)字信號(hào)處理器）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADSP-2181DSP（數(shù)字信號(hào)處理器）數(shù)字信號(hào)處理器是類(lèi)似于微處理器或微控制器的器件，但區(qū)別在于其內(nèi)部架構(gòu)經(jīng)修改，適用于對(duì)連續(xù)數(shù)據(jù)流連續(xù)執(zhí)行以乘法和加法運(yùn)算為主的算法，而不是以條件邏輯或大量并發(fā)進(jìn)程為主的算法。該器件通常用于諸如音頻或視頻信號(hào)處理等應(yīng)用。

GENERAL DESCRIPTION

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

FEATURES

PERFORMANCE

25 ns Instruction Cycle Time from 20 MHz Crystal @ 5.0 Volts

40 MIPS Sustained Performance

Single-Cycle Instruction Execution

Single-Cycle Context Switch

3-Bus Architecture Allows Dual Operand Fetches in Every Instruction Cycle

Multifunction Instructions

Power-Down Mode Featuring Low CMOS Standby

Power Dissipation with 100 Cycle Recovery from Power-Down Condition

Low Power Dissipation in Idle Mode

INTEGRATION

ADSP-2100 Family Code Compatible, with Instruction Set Extensions

80K Bytes of On-Chip RAM, Configured as

16K Words On-Chip Program Memory RAM

16K Words On-Chip Data Memory RAM

Dual Purpose Program Memory for Both Instruction and Data Storage

Independent ALU, Multiplier/Accumulator, and Barrel Shifter Computational Units

Two Independent Data Address Generators

Powerful Program Sequencer Provides

Zero Overhead Looping

Conditional Instruction Execution

Programmable 16-Bit Interval Timer with Prescaler

128-Lead TQFP/128-Lead PQFP