A - 3

11.4.2

Wait Mode ........................................................................................................................................ 101

11.4.3

Stop Mode ......................................................................................................................................... 103

11.5

Notes on Clock Generation Circuit ....................................................................................................... 106

11.5.1

Stop Mode ......................................................................................................................................... 106

11.5.2

Wait Mode ........................................................................................................................................ 106

11.5.3

Oscillation Circuit Constants ............................................................................................................ 106

12.

Protection .................................................................................................................................... 107

13.

Interrupts ..................................................................................................................................... 108

13.1

Interrupt Overview ................................................................................................................................ 108

13.1.1

Types of Interrupts ............................................................................................................................ 108

13.1.2

Software Interrupts ........................................................................................................................... 109

13.1.3

Special Interrupts .............................................................................................................................. 110

13.1.4

Peripheral Function Interrupt ............................................................................................................ 110

13.1.5

Interrupts and Interrupt Vectors ........................................................................................................ 111

13.1.6

Interrupt Control ............................................................................................................................... 113

13.2

INT Interrupt ......................................................................................................................................... 121

13.2.1

INTi Interrupt (i = 0, 1, 2, 4) ............................................................................................................. 121

13.2.2

INTi Input Filter (i = 0, 1, 2, 4) ......................................................................................................... 124

13.3

Key Input Interrupt ................................................................................................................................ 125

13.4

Address Match Interrupt ........................................................................................................................ 127

13.5

Notes on Interrupts ................................................................................................................................ 129

13.5.1

Reading Address 00000h .................................................................................................................. 129

13.5.2

SP Setting .......................................................................................................................................... 129

13.5.3

External Interrupt and Key Input Interrupt ....................................................................................... 129

13.5.4

Changing Interrupt Sources .............................................................................................................. 130

13.5.5

Changing Interrupt Control Register Contents ................................................................................. 131

14.

ID Code Areas ............................................................................................................................ 132

14.1

Overview ............................................................................................................................................... 132

14.2

Functions ............................................................................................................................................... 132

14.3

Notes on ID Code Areas ........................................................................................................................ 133

14.3.1

Setting Example of ID Code Areas ................................................................................................... 133

15.

Option Function Select Area ....................................................................................................... 134

15.1

Overview ............................................................................................................................................... 134

15.2

OFS Register ......................................................................................................................................... 135

15.3

Notes on Option Function Select Area .................................................................................................. 136

15.3.1

Setting Example of Option Function Select Area ............................................................................. 136

16.

Watchdog Timer .......................................................................................................................... 137

16.1

Count Source Protection Mode Disabled .............................................................................................. 141

16.2

Count Source Protection Mode Enabled ............................................................................................... 142

17.

Timers ......................................................................................................................................... 143

17.1

Timer RA ............................................................................................................................................... 145

17.1.1

Timer Mode ...................................................................................................................................... 148

17.1.2

Pulse Output Mode ........................................................................................................................... 150