User’s Manual U15075EJ1V0UM00
13
5.4.2
5.4.3
5.4.4
Clock Generator Operation .....................................................................................................112
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
Subsystem clock oscillator ......................................................................................................... 109
Divider circuit.............................................................................................................................. 111
When no subsystem clock is used ............................................................................................. 111
5.5
5.6
CHAPTER 6 16-BIT TIMER ..................................................................................................................115
6.1
6.2
6.3
6.4
16-Bit Timer Functions ............................................................................................................115
16-Bit Timer Configuration......................................................................................................116
Registers Controlling 16-Bit Timer.........................................................................................119
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
Notes on Using 16-Bit Timer...................................................................................................129
6.5
CHAPTER 7 8-BIT TIMER ....................................................................................................................131
7.1
7.2
7.3
7.4
8-Bit Timer Functions ..............................................................................................................131
8-Bit Timer Configuration........................................................................................................132
Registers Controlling 8-Bit Timer...........................................................................................138
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
Notes on Using 8-Bit Timer.....................................................................................................170
7.5
CHAPTER 8 WATCH TIMER................................................................................................................171
8.1
8.2
8.3
8.4
Watch Timer Functions............................................................................................................171
Watch Timer Configuration.....................................................................................................172
Watch Timer Control Register.................................................................................................173
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
9.2
9.3
Watchdog Timer Functions.....................................................................................................177
Watchdog Timer Configuration...............................................................................................178
Watchdog Timer Control Registers........................................................................................179