Intel 386 User Manual

Intel386™ EX EMBEDDED MICROPROCESSOR USER’S MANUAL
7-6
Figure 7-2. SMIACT# Latency
NOTE
Even if bus cycles are pipelined, the minimum clock numbers are guaranteed.
A2512-02
CLKOUT
T1 T2
CLK2
ADS#
SMI#
SMIACT#
READY#
B D
A
C
Normal State
State Save, SMM Handler,
State Restore
Normal State
A = 1 CLK min, B = 20 CLK min, C = 16 CLK min, D = 4 CLK min

Intel 386 Specifications

General

Architecture	x86
Clock Speed	12 MHz to 40 MHz
Transistor Count	275, 000
Data Bus Width	32-bit
Address Bus Width	32-bit
Instruction Set	x86
Introduced	1985
Maximum Memory	4 GB
Operating Modes	Real mode, Protected mode, Virtual 8086 mode
MMU	Yes
Voltage	5V
Model	Intel 386
Package	PGA
Process	1.5 μm to 1 μm