Intel Embedded Intel486 User Manual

EMBEDDED Intel486™ PROCESSOR HARDWARE REFERENCE MANUAL
2-8
Figure 2-1. A Typical Intel486™ Processor System
2.4.1 Single Processor System
In single-processor systems, the processor handles all peripheral resources and intelligent devic-
es, and executes all software. The Intel486 processor does this in a more efficient way and for a
wider range of task complexity than earlier processors. Single-processor systems offer small size
and low cost in exchange for flexibility in upgrading or expanding the system. Typical applica-
tions include personal computers, small desktop workstations, and embedded controllers. Such
applications are implemented as a single board, usually called a motherboard; the processor bus
does not extend beyond the board occupied by the Intel486 processor.
Figure 2-2 shows an example of such a system. In a single-processor system, devices that share
the processor bus must be selected carefully. All components must interact directly with the pro-
cessor bus or have interface logic that allows them to do so. The total bus bandwidth requirements
Intel486™
Processor
External Cache
Optional
Bus
Processor
Bus
Controller
LAN
Coprocessor
Memory
Processor Bus
System Bus
External Bus

Intel Embedded Intel486 Specifications

General

Brand	Intel
Model	Embedded Intel486
Category	Computer Hardware
Language	English