TMS320VC549GGU-120

定点数字信号处理器 FIXED-POINT DIGITAL SIGNAL PROCESSOR

description

The TMS320VC549 fixed-point, digital signal processor DSP hereafter referred to as the 549 is based on an advanced modified Harvard architecture that has one program memory bus and three data memory buses. The processor also provides an arithmetic logic unit ALU that has a high degree of parallelism, application-specific hardware logic, on-chip memory, and additional on-chip peripherals. The 549 also utilizes a highly specialized instruction set, which is the basis of its operational flexibility and speed.

Advanced Multibus Architecture With Three Separate 16-Bit Data Memory Buses and One Program Memory Bus

40-Bit Arithmetic Logic Unit ALU Including a 40-Bit Barrel Shifter and Two Independent 40-Bit Accumulators

17- ×17-Bit Parallel Multiplier Coupled to a 40-Bit Dedicated Adder for Non-Pipelined Single-Cycle Multiply/Accumulate MAC Operation

Compare, Select, and Store Unit CSSU for the Add/Compare Selection of the Viterbi Operator

Exponent Encoder to Compute an Exponent Value of a 40-Bit Accumulator Value in a Single Cycle

Two Address Generators With Eight Auxiliary Registers and Two Auxiliary Register Arithmetic Units ARAUs

Data Bus With a Bus Holder Feature

Address Bus With a Bus Holder Feature

Extended Addressing Mode for 8M ×16-Bit Maximum Addressable External Program Space

192K ×16-Bit Maximum Addressable Memory Space 64K Words Program, 64K Words Data, and 64K Words I/O

On-Chip ROM with Some Configurable to Program/Data Memory

Dual-Access On-Chip RAM

Single-Access On-Chip RAM

Single-Instruction Repeat and Block-Repeat Operations for Program Code

Block-Memory-Move Instructions for Better Program and Data Management

Instructions With a 32-Bit Long Word Operand

Instructions With Two- or Three-Operand Reads