S3C8-Series Microcontrollers .......................................................................................................................1-1
Flash..............................................................................................................................................................1-1
Features ........................................................................................................................................................1-2
Block Diagram ...............................................................................................................................................1-3
Pin Assignment .............................................................................................................................................1-4
Pin Descriptions ............................................................................................................................................1-6
Pin Circuits ....................................................................................................................................................1-8
Overview........................................................................................................................................................2-1
Program Memory (ROM)...............................................................................................................................2-2
Smart Option.........................................................................................................................................2-3
Register Architecture.....................................................................................................................................2-5
Register Page Pointer (PP) ..................................................................................................................2-8
Register Set 1 .......................................................................................................................................2-10
Register Set 2 .......................................................................................................................................2-10
Prime Register Space...........................................................................................................................2-11
Working Registers ................................................................................................................................2-12
Using the Register Points .....................................................................................................................2-13
Register Addressing ......................................................................................................................................2-15
System and User Stack.................................................................................................................................2-22
Overview........................................................................................................................................................3-1
Register Addressing Mode (R)......................................................................................................................3-2
Indexed Addressing Mode (X).......................................................................................................................3-7
Direct Address Mode (DA) ............................................................................................................................3-10
Indirect Address Mode (IA) ...........................................................................................................................3-12
Relative Address Mode (RA).........................................................................................................................3-13
Immediate Mode (IM) ....................................................................................................................................3-14
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X MICROCONTROLLER
Table of Contents
Part I - Programming Model
v