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M35046-059FP Datenblatt(PDF) 15 Page - Mitsubishi Electric Semiconductor |
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M35046-059FP Datenblatt(HTML) 15 Page - Mitsubishi Electric Semiconductor |
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15 / 40 page ![]() MITSUBISHI MICROCOMPUTERS M35046-XXXSP/FP SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS 15 (2) Setting display frequencies Set a display frequency by setting a frequency value for the hori- zontal synchronization signal by use of DIV10 to DIV0 (12016). Set display frequency area in conformity with the frequency of the external clock signal. Set display frequency area by use of DIVS0, DIVS1 (12016), RSEL0 (12116), and RSEL1 (12216). Frequency area are as fol- lows. RSEL1 RSEL0 DIVS1 DIVS0 Display frequency area 0 1 0 0 70.0 to 80.0 0 0 0 0 63.0 to 70.0 1 0 0 1 56.6 to 63.0 0 1 0 1 46.6 to 56.6 0 0 0 1 45.0 to 46.6 1 0 1 0 42.5 to 45.0 0 1 1 0 35.0 to 42.5 0 0 1 0 31.5 to 35.0 1 0 1 1 28.3 to 31.5 0 1 1 1 23.3 to 28.3 0 0 1 1 20.0 to 23.3 Cautions in setting a display frequency To change the external clock frequency or the horizontal synchroni- zation frequency, follow the steps in sequence given below. (a) Display OFF (DSPON = 0) (b) Set the display frequency (Use DIV10 to DIV0 (12016), DIVS0, DIVS1 (12016), RSEL0 (12116), and RSEL1 (12216).) (c) 20-ms waiting time with the horizontal synchronization signal and the external clock signal being input (d) Display ON (DSPON = 1) |
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