Rev. 2.0, 09/02, page
vii
of
xviii
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.2.10 Configurations of Data in UGM.......................................................................47
3.2.11 Q2SD Internal Data Format .............................................................................49
3.2.12 Interrupt Output Function ................................................................................50
Unified Graphics Memory (UGM)................................................................................51
3.3.1
Memory Address.............................................................................................51
3.3.2
Memory Map...................................................................................................56
3.3.3
Coordinate Systems.........................................................................................59
3.3.4
Double-Buffering Control................................................................................68
3.3.5
Refresh Control...............................................................................................74
Display........................................................................................................................75
3.4.1
Display Functions............................................................................................75
3.4.2
Screen Display Composition............................................................................78
3.4.3
Scanning Systems............................................................................................81
3.4.4
Synchronization Systems.................................................................................90
3.4.5
Color Expansion of Display Screen..................................................................94
Rendering....................................................................................................................96
3.5.1
Commands......................................................................................................96
3.5.2
Image Data Reference......................................................................................98
3.5.3
Rendering Attributes........................................................................................101
3.5.4
Command Fetching..........................................................................................110
3.5.5
Internal Buffer.................................................................................................113
Video Capture..............................................................................................................114
3.6.1
Configuring Circuit for Video Capture.............................................................114
3.6.2
Video Capture Mode........................................................................................116
3.6.3
Reduction of Video Capture Images.................................................................122
3.6.4
Setting Video Capture Position........................................................................123
3.6.5
Format of Captured Data..................................................................................125
3.6.6
YCbCr and RGB Data .....................................................................................127
Video Display Function................................................................................................128
3.7.1
Video Screen Display......................................................................................128
3.7.2
Relationship between the Display Mode and Video-Capture Mode...................129
UGM Access by DMAC..................................................................................35
UGM Access by Q2SD....................................................................................35
Register Access from the CPU.........................................................................36
Register Updating............................................................................................37
Byte Exchange Function..................................................................................39
2-Dimensional Image Data Exchange Function................................................40
Input Color Data Configurations......................................................................44
3.3
3.4
3.5
3.6
3.7
Section 4 Display List....................................................................................137
4.1
Four-Vertex Screen Drawing........................................................................................138
4.1.1
POLYGON4A.................................................................................................138
4.1.2
POLYGON4B.................................................................................................143