R5F21264JFP データシートの表示（PDF） - Renesas Electronics
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R5F21264JFP Datasheet PDF : 485 Pages
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6. Voltage Detection Circuit .............................................................................................................. 34
6.1 VCC Input Voltage .................................................................................................................................. 45
6.1.1 Monitoring Vdet0 ............................................................................................................................... 45
6.1.2 Monitoring Vdet1 ............................................................................................................................... 45
6.1.3 Monitoring Vdet2 ............................................................................................................................... 45
6.2 Voltage Monitor 0 Reset (For N, D Version Only) ................................................................................. 46
6.3 Voltage Monitor 1 Interrupt and Voltage Monitor 1 Reset (N, D Version) ............................................ 47
6.4 Voltage Monitor 1 Reset (J, K Version) .................................................................................................. 49
6.5 Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset ..................................................................... 50
7. Programmable I/O Ports ............................................................................................................... 52
7.1 Functions of Programmable I/O Ports ..................................................................................................... 52
7.2 Effect on Peripheral Functions ................................................................................................................ 53
7.3 Pins Other than Programmable I/O Ports ................................................................................................ 53
7.4 Port Setting .............................................................................................................................................. 65
7.5 Unassigned Pin Handling ........................................................................................................................ 76
8. Processor Mode ............................................................................................................................ 77
8.1 Processor Modes ...................................................................................................................................... 77
9. Bus ................................................................................................................................................ 78
10. Clock Generation Circuit ............................................................................................................... 79
10.1 XIN Clock ............................................................................................................................................... 89
10.2 On-Chip Oscillator Clocks ...................................................................................................................... 90
10.2.1 Low-Speed On-Chip Oscillator Clock ................................................................................................ 90
10.2.2 High-Speed On-Chip Oscillator Clock ............................................................................................... 90
10.3 XCIN Clock (For N, D Version Only) .................................................................................................... 91
10.4 CPU Clock and Peripheral Function Clock ............................................................................................. 92
10.4.1 System Clock ...................................................................................................................................... 92
10.4.2 CPU Clock .......................................................................................................................................... 92
10.4.3 Peripheral Function Clock (f1, f2, f4, f8, and f32) ............................................................................. 92
10.4.4 fOCO ................................................................................................................................................... 92
10.4.5 fOCO40M ........................................................................................................................................... 92
10.4.6 fOCO-F ............................................................................................................................................... 92
10.4.7 fOCO-S ............................................................................................................................................... 92
10.4.8 fC4 and fC32 ....................................................................................................................................... 93
10.4.9 fOCO128 ............................................................................................................................................. 93
10.5 Power Control .......................................................................................................................................... 94
10.5.1 Standard Operating Mode ................................................................................................................... 94
10.5.2 Wait Mode .......................................................................................................................................... 96
10.5.3 Stop Mode ......................................................................................................................................... 100
10.6 Oscillation Stop Detection Function ..................................................................................................... 104
10.6.1 How to Use Oscillation Stop Detection Function ............................................................................. 104
10.7 Notes on Clock Generation Circuit ....................................................................................................... 108
10.7.1 Stop Mode ......................................................................................................................................... 108
10.7.2 Wait Mode ........................................................................................................................................ 108
10.7.3 Oscillation Stop Detection Function ................................................................................................. 108
10.7.4 Oscillation Circuit Constants ............................................................................................................ 108
A-2
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