MC68340 datasheet(25/441 Pages) FREESCALE

25 / 441 page

MOTOROLA

MC68340 USER’S MANUAL

1- 1

SECTION 1

DEVICE OVERVIEW

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.

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 and MC68010 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.

CPU32

68020– BASED

PROCESSOR

TWO-

CHANNEL

SERIAL

I/O

TWO-CHANNEL DMA

CONTROLLER

EXTERNAL

BUS

INTERFACE

CLOCK

SYNTHESIZER

SYSTEM

INTEGRATION

MODULE

(SIM40)

BUS

ARBITRATION

INTERMODULE BUS

TIMER

SYSTEM

PROTECTION

IEEE TEST

CHIP SELECTS

AND

WAIT STATES

Figure 1-1. Block Diagram

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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