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R8C33A Datasheet(PDF) 10 Page - Renesas Technology Corp |
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R8C33A Datasheet(HTML) 10 Page - Renesas Technology Corp |
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10 / 617 page  A - 3 7.6 Unassigned Pin Handling ........................................................................................................................ 94 8. Bus ................................................................................................................................................ 95 9. Clock Generation Circuit ............................................................................................................... 97 9.1 Overview ................................................................................................................................................. 97 9.2 Registers ................................................................................................................................................ 100 9.2.1 System Clock Control Register 0 (CM0) .......................................................................................... 100 9.2.2 System Clock Control Register 1 (CM1) .......................................................................................... 101 9.2.3 System Clock Control Register 3 (CM3) .......................................................................................... 102 9.2.4 Oscillation Stop Detection Register (OCD) ...................................................................................... 103 9.2.5 High-Speed On-Chip Oscillator Control Register 7 (FRA7) ............................................................ 103 9.2.6 High-Speed On-Chip Oscillator Control Register 0 (FRA0) ............................................................ 104 9.2.7 High-Speed On-Chip Oscillator Control Register 1 (FRA1) ............................................................ 104 9.2.8 High-Speed On-Chip Oscillator Control Register 2 (FRA2) ............................................................ 105 9.2.9 Clock Prescaler Reset Flag (CPSRF) ................................................................................................ 105 9.2.10 High-Speed On-Chip Oscillator Control Register 4 (FRA4) ............................................................ 106 9.2.11 High-Speed On-Chip Oscillator Control Register 5 (FRA5) ............................................................ 106 9.2.12 High-Speed On-Chip Oscillator Control Register 6 (FRA6) ............................................................ 106 9.2.13 High-Speed On-Chip Oscillator Control Register 3 (FRA3) ............................................................ 106 9.2.14 Voltage Detect Register 2 (VCA2) ................................................................................................... 107 9.3 XIN Clock ............................................................................................................................................. 109 9.4 On-Chip Oscillator Clock ...................................................................................................................... 110 9.4.1 Low-Speed On-Chip Oscillator Clock .............................................................................................. 110 9.4.2 High-Speed On-Chip Oscillator Clock ............................................................................................. 110 9.5 XCIN Clock ........................................................................................................................................... 111 9.6 CPU Clock and Peripheral Function Clock ........................................................................................... 112 9.6.1 System Clock .................................................................................................................................... 112 9.6.2 CPU Clock ........................................................................................................................................ 112 9.6.3 Peripheral Function Clock (f1, f2, f4, f8, and f32) ........................................................................... 112 9.6.4 fOCO ................................................................................................................................................. 112 9.6.5 fOCO40M ......................................................................................................................................... 112 9.6.6 fOCO-F ............................................................................................................................................. 112 9.6.7 fOCO-S ............................................................................................................................................. 113 9.6.8 fOCO128 ........................................................................................................................................... 113 9.6.9 fC, fC2, fC4, and fC32 ...................................................................................................................... 113 9.6.10 fOCO-WDT ...................................................................................................................................... 113 9.7 Power Control ........................................................................................................................................ 114 9.7.1 Standard Operating Mode ................................................................................................................. 114 9.7.2 Wait Mode ........................................................................................................................................ 116 9.7.3 Stop Mode ......................................................................................................................................... 120 9.8 Oscillation Stop Detection Function ..................................................................................................... 123 9.8.1 How to Use Oscillation Stop Detection Function ............................................................................. 124 9.9 Notes on Clock Generation Circuit ....................................................................................................... 127 9.9.1 Stop Mode ......................................................................................................................................... 127 9.9.2 Wait Mode ........................................................................................................................................ 127 9.9.3 Oscillation Stop Detection Function ................................................................................................. 127 9.9.4 Oscillation Circuit Constants ............................................................................................................ 127 |
Similar Part No. - R8C33A |
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Similar Description - R8C33A |
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