Samsung S3C8245 Manuale Utente
S3C8245/P8245/C8249/P8249 MICROCONTROLLER
v
Table of Contents
Part I — Programming Model
Chapter 1
Product Overview
S3C8-Series Microcontrollers ...............................................................................................................1-1
S3C8245/P8245/C8249/P8249 Microcontroller .......................................................................................1-1
OTP ...................................................................................................................................................1-1
Features .............................................................................................................................................1-2
Block Diagram ....................................................................................................................................1-3
Pin Assignment...................................................................................................................................1-4
Pin Descriptions ..................................................................................................................................1-6
Pin Circuits.........................................................................................................................................1-7
S3C8245/P8245/C8249/P8249 Microcontroller .......................................................................................1-1
OTP ...................................................................................................................................................1-1
Features .............................................................................................................................................1-2
Block Diagram ....................................................................................................................................1-3
Pin Assignment...................................................................................................................................1-4
Pin Descriptions ..................................................................................................................................1-6
Pin Circuits.........................................................................................................................................1-7
Chapter 2
Address Spaces
Overview .............................................................................................................................................2-1
Program Memory (ROM) ......................................................................................................................2-2
Register Architecture ...........................................................................................................................2-3
Program Memory (ROM) ......................................................................................................................2-2
Register Architecture ...........................................................................................................................2-3
Register Page Pointer (PP) ..........................................................................................................2-5
Register Set 1.............................................................................................................................2-6
Register Set 2.............................................................................................................................2-6
Prime Register Space..................................................................................................................2-7
Working Registers .......................................................................................................................2-8
Using the Register Points.............................................................................................................2-9
Register Set 1.............................................................................................................................2-6
Register Set 2.............................................................................................................................2-6
Prime Register Space..................................................................................................................2-7
Working Registers .......................................................................................................................2-8
Using the Register Points.............................................................................................................2-9
Register Addressing ............................................................................................................................2-11
Common Working Register Area (C0H–CFH) .................................................................................2-13
4-bit Working Register Addressing ................................................................................................2-14
8-bit Working Register Addressing ................................................................................................2-16
4-bit Working Register Addressing ................................................................................................2-14
8-bit Working Register Addressing ................................................................................................2-16
System and User Stacks .....................................................................................................................2-18
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
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