MOTOROLA
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by MC68340/D
SEMICONDUCTOR
PRODUCT INFORMATION
MC68340
MC68340V
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.
SYSTEM
INTEGRATION
MODULE
SYSTEM
PROTECTION
CPU32
CORE
TWO-
CHANNEL
SERIAL
I/O
32
CLOCK
16
EXTERNAL
BUS
INTERFACE
BUS
ARBITRATION
INTERMODULE BUS
IEEE TEST
TWO-CHANNEL DMA
CONTROLLER
TIMER
MODULE
TIMER
MODULE
Figure 1. MC68340 Simplified Block Diagram
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
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
