
S3C94A5/F94A5 MICROCONTROLLER 
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Table of Contents 
Part I — Programming Model 
Chapter 1  
Product Overview 
SAM88RCRI Product Family ................................................................................................................1-1 
S3C94A5/F94A5 Microcontroller...........................................................................................................1-1 
Flash..................................................................................................................................................1-1 
Features.............................................................................................................................................1-2 
Block Diagram ....................................................................................................................................1-3 
Pin Assignments.................................................................................................................................1-4 
Pin Descriptions..................................................................................................................................1-6 
Pin Circuit Diagrams............................................................................................................................1-8 
Chapter 2  
Address Spaces 
Overview.............................................................................................................................................2-1 
Program Memory (ROM)......................................................................................................................2-2 
Smart Option ......................................................................................................................................2-3 
Register Architecture...........................................................................................................................2-5 
Common Working Register Area (C0H–CFH) .........................................................................................2-6 
System Stack.....................................................................................................................................2-7 
Chapter 3  
Addressing Modes
Overview.............................................................................................................................................3-1 
Register Addressing Mode (R)..............................................................................................................3-2 
Indirect Register Addressing Mode (IR)..................................................................................................3-3 
Indexed Addressing Mode (X) ...............................................................................................................3-7 
Direct Address Mode (DA)....................................................................................................................3-10 
Relative Address Mode (RA).................................................................................................................3-12 
Immediate Mode (IM)...........................................................................................................................3-12