MPD789426 Datasheet, PDF (13/321 Pages) NEC – 8-Bit Single-Chip Microcontrollers

5.4.2 Subsystem clock oscillator ......................................................................................................... 109
5.4.3 Divider circuit .............................................................................................................................. 111
5.4.4 When no subsystem clock is used ............................................................................................. 111
5.5 Clock Generator Operation .....................................................................................................112
5.6 Changing Setting of System Clock and CPU Clock..............................................................113
5.6.1 Time required for switching between system clock and CPU clock ........................................... 113
5.6.2 Switching between system clock and CPU clock ....................................................................... 114
CHAPTER 6 16-BIT TIMER ..................................................................................................................115
6.1 16-Bit Timer Functions ............................................................................................................115
6.2 16-Bit Timer Configuration ......................................................................................................116
6.3 Registers Controlling 16-Bit Timer .........................................................................................119
6.4 16-Bit Timer Operation.............................................................................................................123
6.4.1 Operation as timer interrupt........................................................................................................ 123
6.4.2 Operation as timer output ........................................................................................................... 125
6.4.3 Capture operation....................................................................................................................... 126
6.4.4 16-bit timer counter 90 readout .................................................................................................. 127
6.4.5 Buzzer output operation ............................................................................................................. 128
6.5 Notes on Using 16-Bit Timer ...................................................................................................129
CHAPTER 7 8-BIT TIMER ....................................................................................................................131
7.1 8-Bit Timer Functions ..............................................................................................................131
7.2 8-Bit Timer Configuration ........................................................................................................132
7.3 Registers Controlling 8-Bit Timer ...........................................................................................138
7.4 8-Bit Timer Operation...............................................................................................................143
7.4.1 Operation as 8-bit timer counter ................................................................................................. 143
7.4.2 Operation as 16-bit timer counter ............................................................................................... 153
7.4.3 Operation as carrier generator ................................................................................................... 160
7.4.4 PWM free-running mode operation (timer 50) ............................................................................ 164
7.4.5 Operation as PWM output (timer 60) .......................................................................................... 168
7.5 Notes on Using 8-Bit Timer .....................................................................................................170
CHAPTER 8 WATCH TIMER ................................................................................................................171
8.1 Watch Timer Functions............................................................................................................171
8.2 Watch Timer Configuration .....................................................................................................172
8.3 Watch Timer Control Register.................................................................................................173
8.4 Watch Timer Operation ............................................................................................................174
8.4.1 Operation as watch timer............................................................................................................ 174
8.4.2 Operation as interval timer ......................................................................................................... 174
CHAPTER 9 WATCHDOG TIMER........................................................................................................177
9.1 Watchdog Timer Functions .....................................................................................................177
9.2 Watchdog Timer Configuration...............................................................................................178
9.3 Watchdog Timer Control Registers ........................................................................................179
User’s Manual U15075EJ1V0UM00
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