NEC 78K0 User Manual page 12

5.8.4 Switching from subsystem clock to X1 input clock........................................................................122
5.8.5 Register settings ...........................................................................................................................123
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00 ........................................................................... 124
6.1 Functions of 16-Bit Timer/Event Counter 00 ......................................................................... 124
6.2 Configuration of 16-Bit Timer/Event Counter 00................................................................... 125
6.3 Registers Controlling 16-Bit Timer/Event Counter 00 .......................................................... 129
6.4 Operation of 16-Bit Timer/Event Counter 00 ......................................................................... 135
6.4.1 Interval timer operation .................................................................................................................135
6.4.2 PPG output operations .................................................................................................................137
6.4.3 Pulse width measurement operations ...........................................................................................140
6.4.4 External event counter operation ..................................................................................................148
6.4.5 Square-wave output operation......................................................................................................150
6.4.6 One-shot pulse output operation...................................................................................................152
6.5 Cautions for 16-Bit Timer/Event Counter 00 ......................................................................... 157
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50 AND 51........................................................... 160
7.1 Functions of 8-Bit Timer/Event Counters 50 and 51............................................................. 160
7.2 Configuration of 8-Bit Timer/Event Counters 50 and 51 ...................................................... 162
7.3 Registers Controlling 8-Bit Timer/Event Counters 50 and 51 ............................................. 164
7.4 Operations of 8-Bit Timer/Event Counters 50 and 51........................................................... 169
7.4.1 Operation as interval timer............................................................................................................169
7.4.2 Operation as external event counter .............................................................................................171
7.4.3 Square-wave output operation......................................................................................................172
7.4.4 PWM output operation ..................................................................................................................173
7.5 Cautions for 8-Bit Timer/Event Counters 50 and 51 ............................................................. 177
CHAPTER 8 8-BIT TIMERS H0 AND H1 .......................................................................................... 178
8.1 Functions of 8-Bit Timers H0 and H1 ..................................................................................... 178
8.2 Configuration of 8-Bit Timers H0 and H1............................................................................... 178
8.3 Registers Controlling 8-Bit Timers H0 and H1 ...................................................................... 182
8.4 Operation of 8-Bit Timers H0 and H1 ..................................................................................... 186
8.4.1 Operation as interval timer/square-wave output ...........................................................................186
8.4.2 Operation as PWM output mode...................................................................................................189
8.4.3 Carrier generator mode operation (8-bit timer H1 only) ................................................................195
CHAPTER 9 WATCH TIMER................................................................................................................ 202
9.1 Functions of Watch Timer ....................................................................................................... 202
9.2 Configuration of Watch Timer................................................................................................. 204
9.3 Register Controlling Watch Timer .......................................................................................... 204
9.4 Watch Timer Operations.......................................................................................................... 206
9.4.1 Watch timer operation...................................................................................................................206
9.4.2 Interval timer operation .................................................................................................................207
9.5 Cautions for Watch Timer ....................................................................................................... 208
CHAPTER 10 WATCHDOG TIMER ..................................................................................................... 209
10.1 Functions of Watchdog Timer ................................................................................................ 209
12
User's Manual U16227EJ2V0UD