Fujitsu MB91319 Series Hardware Manual page 501

■ Writing to Line RAM
Use the following commands to write data on an arbitrary line to an arbitrary address in line RAM:
Figure 18.2-14 shows the procedure for writing to line RAM.
VRAM write address set (Command 0)
Line control data set 1(Command 3)
Line control data set 2 (Command 4)
*4: The line RAM fill function is not available. (It is prohibited to specify file.)
*5: You can omit this command if the current line control data is the same as the one set by the
preceding "line control data set 1" command.
*6: Any line RAM write does not increment the VRAM write address. You must therefore set a line
address for each line.
Figure 18.2-14 Procedure for Writing to Line RAM
*4
Set the row address.
*5
Write the line data to line RAM.
(The VRAM write address remains
*6
unchanged.)
CHAPTER 18 OSDC
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