DSP56F803 datasheet(9/57 Pages) FREESCALE

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56F803 Technical Data, Rev. 16

Freescale Semiconductor

Part 1 Overview

1.1 56F803 Features

1.1.1

Processing Core

•

Efficient 16-bit 56800 family controller engine with dual Harvard architecture

•

As many as 40 Million Instructions Per Second (MIPS) at 80MHz core frequency

•

Single-cycle 16

× 16-bit parallel Multiplier-Accumulator (MAC)

•Two 36-bit accumulators, including extension bits

•16-bit bidirectional barrel shifter

•

Parallel instruction set with unique processor addressing modes

•

Hardware DO and REP loops

•

Three internal address buses and one external address bus

•

Four internal data buses and one external data bus

•

Instruction set supports both DSP and controller functions

•

Controller style addressing modes and instructions for compact code

•

Efficient C compiler and local variable support

•

Software subroutine and interrupt stack with depth limited only by memory

•

JTAG/OnCE debug programming interface

1.1.2

Memory

•

Harvard architecture permits as many as three simultaneous accesses to Program and Data memory

•

On-chip memory including a low-cost, high-volume Flash solution

—31.5K

× 16-bit words of Program Flash

—512K

× 16-bit words of Program RAM

—4K

× 16-bit words of Data Flash

—2K

× 16-bit words of Data RAM

—2K

× 16-bit words of Boot Flash

•

Off-chip memory expansion capabilities programmable for 0, 4, 8, or 12 wait states

— As much as 64K

× 16 bits of Data memory

— As much as 64K

× 16 bits of Program memory

1.1.3

Peripheral Circuits for 56F803

•

Pulse Width Modulator module (PWM) with six PWM outputs, three Current Sense inputs, and three Fault

inputs, fault-tolerant design with dead time insertion, supports both center- and edge- aligned modes,

supports Freescale’s patented dead time distortion correction

•Two 12-bit Analog-to-Digital Converters (ADCs), which support two simultaneous conversions; ADC and

PWM modules can be synchronized

•

Quadrature Decoder with four inputs (shares pins with Quad Timer)

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