82384
CLOCK
GENERATOR
80387
OR
80287
NUMERIC
COPROCESSOR
"I
,.
CLK
A
8259A
INTERRUPT
CONTROLLER
INTERRUPTING
DEVICES
)
..
SYSTEM OVERVIEW
80386
MICRO·
PROCESSOR
BUS
CONTROL
LOGIC
LOCAL
MEMORY
LOCAL BUS
82258
ADMA
CONTROLLER
BUS
CONTROL
LOGIC
LOCAL
110
Figure 1·1. 80386 System Block Diagram
1-2
READY
LOGIC
G30107