NEC 78K0S/KB1+ User Manual page 9

3.4.5 Register indirect addressing ........................................................................................................ 46
3.4.6 Based addressing........................................................................................................................ 47
3.4.7 Stack addressing......................................................................................................................... 48
CHAPTER 4 PORT FUNCTIONS........................................................................................................... 49
4.1 Functions of Ports ..................................................................................................................... 49
4.2 Port Configuration ..................................................................................................................... 51
4.2.1 Port 0........................................................................................................................................... 52
4.2.2 Port 2........................................................................................................................................... 53
4.2.3 Port 3........................................................................................................................................... 54
4.2.4 Port 4........................................................................................................................................... 57
4.2.5 Port 12......................................................................................................................................... 60
4.2.6 Port 13......................................................................................................................................... 62
4.3 Registers Controlling Port Functions...................................................................................... 63
4.4 Operation of Port Function ....................................................................................................... 68
4.4.1 Writing to I/O port ........................................................................................................................ 68
4.4.2 Reading from I/O port.................................................................................................................. 68
4.4.3 Operations on I/O port................................................................................................................. 68
CHAPTER 5 CLOCK GENERATORS................................................................................................... 69
5.1 Functions of Clock Generators ................................................................................................ 69
5.1.1 System clock oscillators .............................................................................................................. 69
5.1.2 Clock oscillator for interval time generation ................................................................................. 69
5.2 Configuration of Clock Generators.......................................................................................... 70
5.3 Registers Controlling Clock Generators ................................................................................. 72
5.4 System Clock Oscillators.......................................................................................................... 75
5.4.1 High-speed internal oscillator ...................................................................................................... 75
5.4.2 Crystal/ceramic oscillator ............................................................................................................ 75
5.4.3 External clock input circuit ........................................................................................................... 77
5.4.4 Prescaler ..................................................................................................................................... 77
5.5 Operation of CPU Clock Generator.......................................................................................... 78
5.6 Operation of Clock Generator Supplying Clock to Peripheral Hardware ............................ 83
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00............................................................................. 85
6.1 Functions of 16-bit Timer/Event Counter 00 ........................................................................... 85
6.2 Configuration of 16-bit Timer/Event Counter 00..................................................................... 86
6.3 Registers to Control 16-bit Timer/Event Counter 00 .............................................................. 90
6.4 Operation of 16-bit Timer/Event Counter 00 ........................................................................... 96
6.4.1 Interval timer operation................................................................................................................ 96
6.4.2 External event counter operation................................................................................................. 98
6.4.3 Pulse width measurement operations ....................................................................................... 101
6.4.4 Square-wave output operation .................................................................................................. 109
6.4.5 PPG output operations .............................................................................................................. 111
6.4.6 One-shot pulse output operation ............................................................................................... 114
6.5 Cautions Related to 16-bit Timer/Event Counter 00.............................................................119
CHAPTER 7 8-BIT TIMER 80..............................................................................................................126
7.1 Function of 8-bit Timer 80 .......................................................................................................126
User's Manual U17446EJ3V1UD
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