Datasheet

User’s Manual U18698EJ1V0UD
9
5.6.1 Example of controlling high-speed system clock ...........................................................................127
5.6.2 Example of controlling internal high-speed oscillation clock ..........................................................129
5.6.3 Example of controlling subsystem clock ........................................................................................131
5.6.4 Example of controlling internal low-speed oscillation clock............................................................133
5.6.5 Clocks supplied to CPU and peripheral hardware .........................................................................133
5.6.6 CPU clock status transition diagram ..............................................................................................134
5.6.7 Condition before changing CPU clock and processing after changing CPU clock.........................139
5.6.8 Time required for switchover of CPU clock and main system clock...............................................140
5.6.9 Conditions before clock oscillation is stopped................................................................................141
5.6.10 Peripheral hardware and source clocks .......................................................................................142
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00........................................................................... 143
6.1 Functions of 16-Bit Timer/Event Counter 00........................................................................... 143
6.2 Configuration of 16-Bit Timer/Event Counter 00..................................................................... 144
6.3 Registers Controlling 16-Bit Timer/Event Counter 00............................................................ 149
6.4 Operation of 16-Bit Timer/Event Counter 00 ........................................................................... 158
6.4.1 Interval timer operation ..................................................................................................................158
6.4.2 Square wave output operation .......................................................................................................161
6.4.3 External event counter operation ...................................................................................................164
6.4.4 Operation in clear & start mode entered by TI000 pin valid edge input..........................................168
6.4.5 Free-running timer operation .........................................................................................................181
6.4.6 PPG output operation ....................................................................................................................190
6.4.7 One-shot pulse output operation....................................................................................................193
6.4.8 Pulse width measurement operation..............................................................................................198
6.4.9 External 24-bit event counter operation .........................................................................................206
6.4.10 Cautions for external 24-bit event counter ...................................................................................210
6.5 Special Use of TM00 .................................................................................................................. 212
6.5.1 Rewriting CR010 during TM00 operation.......................................................................................212
6.5.2 Setting LVS00 and LVR00 .............................................................................................................212
6.6 Cautions for 16-Bit Timer/Event Counter 00 ........................................................................... 214
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50, 51, AND 52 .................................................. 218
7.1 Functions of 8-Bit Timer/Event Counters 50, 51, and 52 ....................................................... 218
7.2 Configuration of 8-Bit Timer/Event Counters 50, 51, and 52 ................................................. 218
7.3 Registers Controlling 8-Bit Timer/Event Counters 50, 51, and 52 ........................................ 222
7.4 Operations of 8-Bit Timer/Event Counters 50, 51, and 52...................................................... 229
7.4.1 Operation as interval timer.............................................................................................................229
7.4.2 Operation as external event counter (TM52 only)..........................................................................231
7.5 Cautions for 8-Bit Timer/Event Counters 50, 51, and 52........................................................ 232
CHAPTER 8 8-BIT TIMERS H0, H1 AND H2................................................................................... 234
8.1 Functions of 8-Bit Timers H0, H1, and H2 ............................................................................... 234
8.2 Configuration of 8-Bit Timers H0, H1, and H2 ......................................................................... 234
8.3 Registers Controlling 8-Bit Timers H0, H1, and H2 ................................................................ 239
8.4 Operation of 8-Bit Timers H0, H1 and H2................................................................................. 246
8.4.1 Operation as interval timer/square-wave output ............................................................................246
8.4.2 Operation as PWM output..............................................................................................................249