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Manual Display Change Mode: In manual display change mode, display frame switching
and the start of drawing are controlled by software. Display switching can be performed either by
performing FB0/FB1 switching with an SYSR DC bit setting by software, or by setting the start
address of FB0 or FB1 in the display start address register indicated by DBF in SR. The start of
drawing is controlled by the RS bit in SYSR. Interrupts by means of the VBK flag and TRA flag
in SR are used for the control timing. An outline of operation when using the DC bit in this mode
is shown in figure 3-11. When switching from this mode to another double-buffering control
mode, the DC bit must first be set to 1.
Содержание HD64411 Q2
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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 ...
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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 ...