R5F212A7SDFA-V2 データシートの表示（PDF） - Renesas Electronics
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R5F212A7SDFA-V2 Datasheet PDF : 609 Pages
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6. Voltage Detection Circuit .............................................................................................................. 42
6.1 VCC Input Voltage .................................................................................................................................. 49
6.1.1 Monitoring Vdet0 ............................................................................................................................... 49
6.1.2 Monitoring Vdet1 ............................................................................................................................... 49
6.1.3 Monitoring Vdet2 ............................................................................................................................... 49
6.2 Voltage Monitor 0 Reset ......................................................................................................................... 50
6.3 Voltage Monitor 1 Interrupt and Voltage Monitor 1 Reset ..................................................................... 51
6.4 Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset ..................................................................... 53
7. Programmable I/O Ports ............................................................................................................... 55
7.1 Functions of Programmable I/O Ports ..................................................................................................... 55
7.2 Effect on Peripheral Functions ................................................................................................................ 56
7.3 Pins Other than Programmable I/O Ports ................................................................................................ 56
7.4 Port settings ............................................................................................................................................. 72
7.5 Unassigned Pin Handling ........................................................................................................................ 89
8. Processor Mode ............................................................................................................................ 90
8.1 Processor Modes ...................................................................................................................................... 90
9. Bus ................................................................................................................................................ 91
10. Clock Generation Circuit ............................................................................................................... 93
10.1 XIN Clock ............................................................................................................................................. 103
10.2 On-Chip Oscillator Clocks .................................................................................................................... 104
10.2.1 Low-Speed On-Chip Oscillator Clock .............................................................................................. 104
10.2.2 High-Speed On-Chip Oscillator Clock ............................................................................................. 104
10.3 XCIN Clock ........................................................................................................................................... 105
10.4 CPU Clock and Peripheral Function Clock ........................................................................................... 106
10.4.1 System Clock .................................................................................................................................... 106
10.4.2 CPU Clock ........................................................................................................................................ 106
10.4.3 Peripheral Function Clock (f1, f2, f4, f8, and f32) ........................................................................... 106
10.4.4 fOCO ................................................................................................................................................. 106
10.4.5 fOCO40M ......................................................................................................................................... 106
10.4.6 fOCO-F ............................................................................................................................................. 106
10.4.7 fOCO-S ............................................................................................................................................. 106
10.4.8 fOCO128 ........................................................................................................................................... 106
10.4.9 fC4 and fC32 ..................................................................................................................................... 107
10.5 Power Control ........................................................................................................................................ 108
10.5.1 Standard Operating Mode ................................................................................................................. 108
10.5.2 Wait Mode ........................................................................................................................................ 110
10.5.3 Stop Mode ......................................................................................................................................... 114
10.6 Oscillation Stop Detection Function ..................................................................................................... 117
10.6.1 How to Use Oscillation Stop Detection Function ............................................................................. 117
10.7 Notes on Clock Generation Circuit ....................................................................................................... 120
10.7.1 Stop Mode ......................................................................................................................................... 120
10.7.2 Wait Mode ........................................................................................................................................ 120
10.7.3 Oscillation Stop Detection Function ................................................................................................. 120
10.7.4 Oscillation Circuit Constants ............................................................................................................ 120
A-2
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