GENERAL DESCRIPTION

The ADSP-2100 Family processors are single-chip microcomputers optimized for digital signal processing (DSP) and other high speed numeric processing applications. The ADSP-21xx processors are all built upon a common core. Each processor combines the core DSP architecture—computation units, data address generators, and program sequencer—with differentiating features such as on-chip program and data memory RAM, a programmable timer, one or two serial ports, and, on the ADSP-2111, a host interface port.

SUMMARY

16-Bit Fixed-Point DSP Microprocessors with

On-Chip Memory

Enhanced Harvard Architecture for Three-Bus

Performance: Instruction Bus & Dual Data Buses

Independent Computation Units: ALU, Multiplier/

Accumulator, and Shifter

Single-Cycle Instruction Execution & Multifunction

Instructions

On-Chip Program Memory RAM or ROM

& Data Memory RAM

Integrated I/O Peripherals: Serial Ports, Timer,

Host Interface Port (ADSP-2111 Only)

FEATURES

25 MIPS, 40 ns Maximum Instruction Rate

Separate On-Chip Buses for Program and Data Memory

Program Memory Stores Both Instructions and Data

(Three-Bus Performance)

Dual Data Address Generators with Modulo and

Bit-Reverse Addressing

Efficient Program Sequencing with Zero-Overhead

Looping: Single-Cycle Loop Setup

Automatic Booting of On-Chip Program Memory from

Byte-Wide External Memory (e.g., EPROM )

Double-Buffered Serial Ports with Companding Hardware,

Automatic Data Buffering, and Multichannel Operation

ADSP-2111 Host Interface Port Provides Easy Interface

to 68000, 80C51, ADSP-21xx, Etc.

Automatic Booting of ADSP-2111 Program Memory

Through Host Interface Port

Three Edge- or Level-Sensitive Interrupts

Low Power IDLE Instruction

PGA, PLCC, PQFP, and TQFP Packages

MIL-STD-883B Versions Available

ADSP-2101, ADSP-2105, and ADSP-2115 are obsolete

ADSP-2105属于集成电路（IC） > DSP（数字信号处理器）。亚德诺半导体技术有限公司制造生产的ADSP-2105DSP（数字信号处理器）数字信号处理器是类似于微处理器或微控制器的器件，但区别在于其内部架构经修改，适用于对连续数据流连续执行以乘法和加法运算为主的算法，而不是以条件逻辑或大量并发进程为主的算法。该器件通常用于诸如音频或视频信号处理等应用。