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7.4.2 Subsystem clock oscillator ........................................................................................................... 162
7.4.3 Scaler ........................................................................................................................................... 164
7.4.4 When no subsystem clocks are used........................................................................................... 164
7.5 Clock Generator Operations ................................................................................................. 165
7.5.1 Main system clock operations ...................................................................................................... 166
7.5.2 Subsystem clock operations ........................................................................................................ 167
7.6 Changing System Clock and CPU Clock Settings.............................................................. 167
7.6.1 Time required for switchover between system clock and CPU clock ........................................... 167
7.6.2 System clock and CPU clock switching procedure ...................................................................... 169
CHAPTER 8 16-BIT TIMER/EVENT COUNTER ................................................................................... 171
8.1 Overview of the
µ
PD78058F and 78058FY Subseries On-Chip Timers............................. 171
8.2 16-Bit Timer/Event Counter Functions ................................................................................ 173
8.3 16-Bit Timer/Event Counter Configuration .......................................................................... 174
8.4 16-Bit Timer/Event Counter Control Registers ................................................................... 178
8.5 16-Bit Timer/Event Counter Operations............................................................................... 187
8.5.1 Interval timer operations............................................................................................................... 187
8.5.2 PWM output operations................................................................................................................ 189
8.5.3 PPG output operation................................................................................................................... 192
8.5.4 Pulse width measurement operations .......................................................................................... 193
8.5.5 External event counter operation ................................................................................................. 200
8.5.6 Square-wave output operation ..................................................................................................... 202
8.5.7 One-shot pulse output operation .................................................................................................. 204
8.6 16-Bit Timer/Event Counter Operating Precautions ........................................................... 208
CHAPTER 9 8-BIT TIMER/EVENT COUNTERS .................................................................................. 211
9.1 8-Bit Timer/Event Counter Function .................................................................................... 211
9.1.1 8-bit timer/event counter mode .................................................................................................... 211
9.1.2 16-bit timer/event counter mode .................................................................................................. 214
9.2 8-Bit Timer/Event Counter Configuration ............................................................................ 216
9.3 8-Bit Timer/Event Counter Control Registers ..................................................................... 220
9.4 8-Bit Timer/Event Counter Operation................................................................................... 225
9.4.1 8-bit timer/event counter mode .................................................................................................... 225
9.4.2 16-bit timer/event counter mode .................................................................................................. 230
9.5 Cautions on 8-Bit Timer/Event Counters............................................................................. 236
CHAPTER 10 WATCH TIMER .............................................................................................................. 239
10.1 Watch Timer Functions ....................................................................................................... 239
10.2 Watch Timer Configuration................................................................................................. 240
10.3 Watch Timer Control Registers .......................................................................................... 240
10.4 Watch Timer Operations ..................................................................................................... 244
10.4.1 Watch timer operation ............................................................................................................. 244
10.4.2 Interval timer operation ............................................................................................................ 244