AM186EM Datasheet, PDF (36/98 Pages) List of Unclassifed Manufacturers – MICROCONTROLLER BLOCK DIAGRAM

PRELIMINARY
CLKOUTA
A19–A0
AD7–AD0
(Read)
AD15–AD8
(Read)
AD15–AD0
(Write)
LCS, UCS
t₁
t₂
t₃
t₄
Address
Data
Phase
Phase
Address
Data
Data
Data
Figure 4. Am186EM Microcontroller—Read and Write with Address Bus Disable In Effect
CLKOUTA
A19–A0
AD7–AD0
(Read)
AO15–AO8
(Read or Write)
AD7–AD0
(Write)
LCS or UCS
MCSx, PCSx
t₁
t₂
t₃
t₄
Address
Data
Phase
Phase
Address
Address
Data
Address
Address
Data
Figure 5. Am188EM Microcontroller Address Bus—Normal Read and Write Operation
36
Am186/188EM and Am186/188EMLV Microcontrollers