Renesas R8C/18 Series Hardware Manual page 10

10.3 CPU Clock and Peripheral Function Clock................................................62
10.3.1 System Clock......................................................................................62
10.3.2 CPU Clock ..........................................................................................62
10.3.3 Peripheral Function Clock (f1, f2, f4, f8, and f32) ...............................62
10.3.4 fRING and fRING128..........................................................................62
10.3.5 fRING-fast...........................................................................................62
10.3.6 fRING-S ..............................................................................................62
10.4 Power Control............................................................................................63
10.4.1 Standard Operating Mode ..................................................................63
10.4.2 Wait Mode ..........................................................................................64
10.4.3 Stop Mode ..........................................................................................66
10.5 Oscillation Stop Detection Function ..........................................................68
10.5.1 How to Use Oscillation Stop Detection Function ................................68
10.6 Notes on Clock Generation Circuit ............................................................70
10.6.1 Stop Mode and Wait Mode .................................................................70
10.6.2 Oscillation Stop Detection Function....................................................70
10.6.3 Oscillation Circuit Constants...............................................................70
10.6.4 High-Speed On-Chip Oscillator Clock ................................................70
11. Protection
12. Interrupts
12.1 Interrupt Overview .....................................................................................72
12.1.1 Types of Interrupts..............................................................................72
12.1.2 Software Interrupts .............................................................................73
12.1.3 Special Interrupts................................................................................74
12.1.4 Peripheral Function Interrupt ..............................................................74
12.1.5 Interrupts and Interrupt Vectors..........................................................75
12.1.6 Interrupt Control..................................................................................77
12.2 INT Interrupt ..............................................................................................85
12.2.1 INT0 Interrupt .....................................................................................85
12.2.2 INT0 Input Filter..................................................................................86
12.2.3 INT1 Interrupt .....................................................................................87
12.2.4 INT3 Interrupt .....................................................................................88
12.3 Key Input Interrupt.....................................................................................90
12.4 Address Match Interrupt ............................................................................92
A - 3
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