R8C2H datasheet(10/67 Pages) RENESAS

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11.4.2

Wait Mode ........................................................................................................................................ 110

11.4.3

Stop Mode ......................................................................................................................................... 112

11.5

Notes on Clock Generation Circuit ....................................................................................................... 116

11.5.1

Stop Mode ......................................................................................................................................... 116

11.5.2

Wait Mode ........................................................................................................................................ 116

11.5.3

Oscillation Circuit Constants ............................................................................................................ 116

12.

Protection ..................................................................................................................................... 117

13.

Interrupts ...................................................................................................................................... 118

13.1

Interrupt Overview ................................................................................................................................ 118

13.1.1

Types of Interrupts ............................................................................................................................ 118

13.1.2

Software Interrupts ........................................................................................................................... 119

13.1.3

Special Interrupts .............................................................................................................................. 120

13.1.4

Peripheral Function Interrupt ............................................................................................................ 120

13.1.5

Interrupts and Interrupt Vectors ........................................................................................................ 121

13.1.6

Interrupt Control ............................................................................................................................... 123

13.2

INT Interrupt ......................................................................................................................................... 131

13.2.1

INTi Interrupt (i = 0 or 1) ................................................................................................................. 131

13.2.2

INTi Input Filter (i = 0 or 1) ............................................................................................................. 133

13.3

Key Input Interrupt ................................................................................................................................ 134

13.4

Address Match Interrupt ........................................................................................................................ 136

13.5

Notes on Interrupts ................................................................................................................................ 138

13.5.1

Reading Address 00000h .................................................................................................................. 138

13.5.2

SP Setting .......................................................................................................................................... 138

13.5.3

External Interrupt and Key Input Interrupt ....................................................................................... 138

13.5.4

Changing Interrupt Sources .............................................................................................................. 139

13.5.5

Changing Interrupt Control Register Contents ................................................................................. 140

14.

ID Code Areas ............................................................................................................................ 141

14.1

Overview ............................................................................................................................................... 141

14.2

Functions ............................................................................................................................................... 141

14.3

Notes on ID Code Areas ........................................................................................................................ 142

14.3.1

Setting Example of ID Code Areas ................................................................................................... 142

15.

Option Function Select Area ....................................................................................................... 143

15.1

Overview ............................................................................................................................................... 143

15.2

OFS Register ......................................................................................................................................... 144

15.3

Notes on Option Function Select Area .................................................................................................. 145

15.3.1

Setting Example of Option Function Select Area ............................................................................. 145

16.

Watchdog Timer .......................................................................................................................... 146

16.1

Count Source Protection Mode Disabled (R8C/2H Group) .................................................................. 153

16.2

Count Source Protection Mode Disabled (R8C/2J Group) ................................................................... 154

16.3

Count Source Protection Mode Enabled ............................................................................................... 155

17.

Timers ......................................................................................................................................... 156

17.1

Timer RA ............................................................................................................................................... 158

17.1.1

Timer Mode ...................................................................................................................................... 161

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