ADSP-2105BP-55

ADSP -2100系列的DSP微型计算机 ADSP-2100 Family DSP Microcomputers

GENERAL DESCRIPTION

The ADSP-2100 Family processors are single-chip micro computers 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.

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

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