Table Of Contents - Nintendo GAME BOY ADVANCE Programming Manual

May 25, 2005
Contents
Revision History.......................................................................................................................................xiii
Introduction ............................................................................................................................................. xxi
Using This Manual ..................................................................................................................................xxii
1 The Game Boy Advance System ........................................................................................................1
1.1 System Overview.......................................................................................................................1
2 System Configuration ..........................................................................................................................3
2.1 CPU Block Diagram...................................................................................................................3
2.2 Complete Block Diagram ...........................................................................................................4
2.3 Memory Configuration and Access Widths................................................................................5
2.4 Little-Endian...............................................................................................................................5
3 Game Boy Advance Memory...............................................................................................................7
3.1 Overall Memory Map .................................................................................................................7
3.2 Memory Configuration ...............................................................................................................8
3.2.1 Game Boy Advance Internal Memory ..............................................................................8
3.2.2 Game Pak Memory ..........................................................................................................9
3.3 Game Pak Memory Wait Control...............................................................................................9
3.3.1 Access Timing................................................................................................................12
3.3.2 Game Pak Bus............................................................................................................... 13
4 LCD ...................................................................................................................................................15
4.1 LCD Status ..............................................................................................................................16
4.1.1 V Counter.......................................................................................................................16
4.1.2 General LCD Status.......................................................................................................16
5 Image System....................................................................................................................................19
5.1 BG Modes................................................................................................................................21
5.1.1 Details of BG Modes ......................................................................................................21
5.1.2 VRAM Memory Map.......................................................................................................23
6 Rendering Functions .........................................................................................................................25
6.1 Character Mode BG (BG Modes 0-2) ......................................................................................25
6.1.1 BG Control .....................................................................................................................25
6.1.2 Mosaic Size....................................................................................................................29
6.1.3 VRAM Address Mapping of BG Data.............................................................................30
6.1.4 Character Data Format ..................................................................................................32
6.1.5 BG Screen Data Format ................................................................................................ 33
6.1.6 BG Screen Data Address Mapping for the LCD Screen ................................................35
6.1.7 BG Rotation and Scaling Features ................................................................................ 40
6.1.8 BG Scrolling ...................................................................................................................42
6.2 Bitmap Mode BGs (BG Modes 3-5) .........................................................................................43
6.2.1 BG Control .....................................................................................................................43
6.2.2 BG Rotation/Scaling.......................................................................................................43
6.2.3 Pixel Data.......................................................................................................................44
6.2.4 Pixel Data Address Mapping for the LCD Screen ..........................................................44
6.3 OBJ (Object) ............................................................................................................................47
6.3.1 OBJ Function Overview .................................................................................................47
6.3.2 Character Data Mapping ................................................................................................48
6.3.3 OAM...............................................................................................................................50
6.3.4 OBJ Rotation/Scaling Feature .......................................................................................57
6.4 Display Priority of OBJ and BG................................................................................................58
6.4.1 Priority Among BGs ....................................................................................................... 58
6.4.2 Priority Among OBJs......................................................................................................58
6.4.3 Priority Among BGs and OBJs.......................................................................................59
© 1999-2005 NINTENDO

Table of Contents

iii
AGB-06-0001-002-B13
Released: May 27, 2005