Samsung S3C8275X User Manual
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S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X MICROCONTROLLER
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Table of Contents
Part I — Programming Model
Chapter 1
Product Overview
S3C8-Series Microcontrollers .......................................................................................................................1-1
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X Microcontroller .......................................................1-1
Flash..............................................................................................................................................................1-1
Features ........................................................................................................................................................1-2
Block Diagram ...............................................................................................................................................1-3
Pin Assignment .............................................................................................................................................1-4
Pin Descriptions ............................................................................................................................................1-6
Pin Circuits ....................................................................................................................................................1-8
Chapter 2
Address Spaces
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
Common Working Register Area (C0H–CFH) .....................................................................................2-17
4-Bit Working Register Addressing ......................................................................................................2-18
8-Bit Working Register Addressing ......................................................................................................2-20
System and User Stack.................................................................................................................................2-22
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
Indirect Address Mode (IA) ...........................................................................................................................3-12
Relative Address Mode (RA).........................................................................................................................3-13
Immediate Mode (IM) ....................................................................................................................................3-14