AM186 Datasheet, PDF (42/112 Pages) Advanced Micro Devices – High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM

t₁
Address
Phase
t₂
t₃
t₄
Data
Phase
CLKOUTA
A19–A0
AD15–AD0
(Read)
Address
Address
Data
AD15–AD0
(Write)
Address
Data
LCS or UCS
MCSx, PCSx
Figure 4. Am186™ER Microcontroller Address Bus—Normal Operation
A ^{F T} _CLKOUTA
A19–A0
AD7–AD0
R _(Read)
AD15–AD8
D^(Read)
t₁
t₂
Address
Phase
t₃
t₄
Data
Phase
Address
Data
Data
AD15–AD0
(Write)
Data
LCS or UCS
Figure 5. Am186™ER Microcontroller—Address Bus Disable in Effect
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Am186^TMER and Am188^TMER Microcontrollers Data Sheet