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M30620FCAFP Datasheet(PDF) 340 Page - Renesas Technology Corp |
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M30620FCAFP Datasheet(HTML) 340 Page - Renesas Technology Corp |
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340 / 615 page  Timer A Mitsubishi microcomputers M16C / 62A Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER 2-23 Figure 2.2.17. Set-up procedure of 2-phase pulse signal process in event counter mode, normal mode selected Setting counter value Can be set to 000016 to FFFF16 b7 b0 (b15) (b8) b7 b0 Timer A2 register [Address 038B16, 038A16]TA2 Timer A3 register [Address 038D16, 038C16]TA3 Start count Selecting event counter mode and functions 0 (Must always be “0” when using two-phase pulse signal processing) Timer Ai mode register (i= 2, 3) [Address 039816, 039916] TAiMR (i= 2, 3) 1 (Must always be “1” when using two-phase pulse signal processing) Selection of event counter mode Two-phase pulse signal processing operation select bit (Note 1) 0 : Normal processing operation Count operation type select bit 1 : Free-run type 0 (Must always be “0” when using two-phase pulse signal processing) 0 (Must always be “0” when using two-phase pulse signal processing) b7 b0 01 00 10 01 Setting two-phase pulse signal processing select bit b7 b0 Up/down flag [Address 038416] UDF Timer A2 two-phase pulse signal processing select bit (Note 2) 1 : Two-phase pulse signal processing enabled Timer A3 two-phase pulse signal processing select bit (Note 2) 1 : Two-phase pulse signal processing enabled Setting count start flag Count start flag [Address 038016] TABSR Timer A2 count start flag Timer A3 count start flag b7 b0 Setting trigger select register Trigger select register [Address 038316] TRGSR Timer A2 event/trigger select bit b3 b2 0 0 : Input on TA2IN is selected (Note 3) b7 b0 Note 1: This bit is valid for timer A3 mode register. For timer A2 mode register, this bit can be “0” or “1”. Note 2: Set the TAiIN, TAiOUT corresponding port direction register to “0”. Timer A3 event/trigger select bit b5 b4 0 0 : Input on TA3IN is selected (Note 3) Note 3: Set the corresponding port direction register to “0”. |
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