129
Bit 9—Display Area Change (DC): Controls frame buffer switching in manual display
change mode.
Bit 9:
D C
Description
0
Switching of the frame buffer for display is not performed in manual display change
mode.
(Initial value)
1
Switching of the frame buffer for display is performed in manual display change mode.
Switching is performed in frame units in non-interlace and interlace modes, and in field
units in interlace sync & video mode.
This bit is cleared to 0 after frame buffer switching.
Bit 8—Rendering Start (RS): Specifies the start of rendering.
Bit 8
R S
Description
0
Rendering is not started.
(Initial value)
1
Rendering is started. This bit is cleared to 0 after rendering starts.
When starting rendering, have a UGM dummy read performed by the CPU, clear the
internal FIFO, and then set this bit to 1. The internal FIFO is cleared automatically 64
CLK0 cycles later, after which drawing can be performed by setting this bit to 1.
Bits 7 and 6—Double-Buffer Mode 1 and 0 (DBM1, DBM0): These bits select
double-buffer control.
Bit 7:
D B M 1
Bit 6:
DBM0
Description
0
0
Auto display change mode is set.
1
Auto rendering mode is set.
1
0
Manual display change mode is set.
1
Setting prohibited
Содержание HD64411 Q2
Страница 17: ...10 ...
Страница 31: ...24 ...
Страница 108: ...101 Example 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 110: ...103 Example Old XC YC Old XC XC old YC YC 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 112: ...105 Example 0 0 Work coordinates Rendering coordinates XO1 YO1 XO1 DX2 YO1 DY2 XO1 DX1 YO1 DY1 LINE ...
Страница 116: ...109 Example 0 0 Work coordinates Rendering coordinates XMIN YMIN XMAX YMAX ...
Страница 118: ...111 Example 0 0 Work coordinates Rendering coordinates XMAX YMAX ...
Страница 120: ...113 Example 0 0 Work coordinates XMIN YMIN XMAX YMAX ...
Страница 129: ...122 ...
Страница 167: ...160 ...
Страница 179: ...172 ...
Страница 213: ...206 Figure 7 20 TV Sync Mode Display Timing When DOT 0 or DOT 1 and EXHSYNC cycle is even multiple of CLK1 cycle ...