MOTOROLA

SEMICONDUCTOR

PRODUCT INFORMATION

Product Brief

Integrated Processor With DMA

The MC68340 is a high-performance 32-bit integrated processor with direct memory access (DMA),

combining an enhanced M68000-compatible processor, 32-bit DMA, and other peripheral subsystems on a

single integrated circuit. The MC68340 CPU32 delivers 32-bit CISC processor performance from a lower

cost 16-bit memory system. The combination of peripherals offered in the MC68340 can be found in a

diverse range of microprocessor-based systems, including embedded control and general computing.

Systems requiring very high-speed block transfers of data can especially benefit from the MC68340's DMA.

The MC68340's high level of functional integration results in significant reductions in component count,

power consumption, board space, and cost while yielding much higher system reliability and shorter design

time. The 3.3-V MC68340V is particularly attractive to applications requiring a very tight power budget.

Complete code compatibility with the MC68000 affords the designer access to a broad base of established

real-time kernels, operating systems, languages, applications, and development tools—many oriented

towards embedded control. Figure 1 shows a block diagram of the MC68340.

CPU32

CORE

TWO-

CHANNEL

SERIAL

I/O

TWO-CHANNEL DMA

CONTROLLER

EXTERNAL

BUS

INTERFACE

CLOCK

SYSTEM

INTEGRATION

MODULE

BUS

ARBITRATION

INTERMODULE BUS

TIMER

MODULE

TIMER

MODULE

SYSTEM

PROTECTION

IEEE TEST

16

32

Figure 1. MC68340 Simplified Block Diagram

Order this document

by MC68340/D

MC68340

MC68340V

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

© MOTOROLA INC.,

1992

Rev 3

Also Replaces BR752/D