7220 Datasheet, PDF (211/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
5.5 Example of I²C-BUS control by software (M37220M3-XXXSP/FP)
(3) Processing of “picture memory switching key“ input
Picture memory switching
Related processings:
•Read out picture data from RAM
•Changing picture data
•OSD when switching picture memory
•Write last data to E ²PROM
, etc.
Set the following according to
each picture memory mode:
•SHARPNESS (D0 to D5 at sub-address 04 16)
•CONTRAST (D0 to D6 at sub-address 05 16)
•TINT (D0 to D6 at sub-address 07 16)
•COLOR (D0 to D6 at sub-address 08 16)
•BRIGHT (D0 to D6 at sub-address 0A 16)
END
Fig. 5.5.15 Flowchart of “picture memory switching key” input processing
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7220 Group User’s Manual