NEC PD78076Y Network Card User Manual


 
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CHAPTER 7 CLOCK GENERATOR .................................................................................................... 165
7.1 Clock Generator Functions ................................................................................................ 165
7.2 Clock Generator Configuration.......................................................................................... 166
7.3 Clock Generator Control Register..................................................................................... 167
7.4 System Clock Oscillator ..................................................................................................... 171
7.4.1 Main system clock oscillator ..................................................................................................... 171
7.4.2 Subsystem clock oscillator........................................................................................................ 172
7.4.3 Divider ........................................................................................................................................ 174
7.4.4 When no subsystem clocks are used ...................................................................................... 174
7.5 Clock Generator Operations .............................................................................................. 175
7.5.1 Main system clock operations .................................................................................................. 176
7.5.2 Subsystem clock operations ..................................................................................................... 177
7.6 Changing System Clock and CPU Clock Settings.......................................................... 178
7.6.1 Time required for switchover between system clock and CPU clock..................................... 178
7.6.2 System clock and CPU clock switching procedure ................................................................. 179
CHAPTER 8 16-BIT TIMER/EVENT COUNTER .................................................................................. 181
8.1 Outline of Timers Incorporated into
µ
PD78078, 78078Y Subseries ............................. 181
8.2 16-Bit Timer/Event Counter Functions ............................................................................. 183
8.3 16-Bit Timer/Event Counter Configuration ...................................................................... 185
8.4 16-Bit Timer/Event Counter Control Registers ............................................................... 190
8.5 16-Bit Timer/Event Counter Operations ........................................................................... 198
8.5.1 Interval timer operations ........................................................................................................... 198
8.5.2 PWM output operations ............................................................................................................ 200
8.5.3 PPG output operations.............................................................................................................. 203
8.5.4 Pulse width measurement operations ...................................................................................... 204
8.5.5 External event counter operation ............................................................................................. 211
8.5.6 Square-wave output operation ................................................................................................. 213
8.5.7 One-shot pulse output operation .............................................................................................. 215
8.6 16-Bit Timer/Event Counter Operating Precautions ....................................................... 219
CHAPTER 9 8-BIT TIMER/EVENT COUNTERS 1 AND 2................................................................... 223
9.1 8-Bit Timer/Event Counters 1 and 2 Functions ............................................................... 223
9.1.1 8-bit timer/event counter mode................................................................................................. 223
9.1.2 16-bit timer/event counter mode............................................................................................... 226
9.2 8-Bit Timer/Event Counters 1 and 2 Configurations ...................................................... 228
9.3 8-Bit Timer/Event Counters 1 and 2 Control Registers ................................................. 231
9.4 8-Bit Timer/Event Counters 1 and 2 Operations ............................................................. 236
9.4.1 8-bit timer/event counter mode................................................................................................. 236
9.4.2 16-bit timer/event counter mode............................................................................................... 242
9.5 8-Bit Timer/Event Counters 1 and 2 Precautions ........................................................... 246