ML620Q503/Q504 User's Manual
Chapter 9 Function Timer(FTM)
FEUL620Q504 9–43
9.3.7.2 Start/Stop Operations by Event Trigger
Here is the setting used to control the counter by event triggers.
1) FTnTRG0 setting
Enable/Disable counter start/stop by event triggers
Set whether or not to clear the counter at stop by an event trigger
Set whether or not to accept the next counter start after stop by an event trigger
Set the event trigger source (EXI0-7TGO, TIMER0-7INT, FTM0-3TGO)
2) FTnTRG1 setting
Set the edge of the event trigger which generates counter start
Set the edge of the event trigger which generates counter stop
3) Controlling FTnCON0
Set FTnTGEN to "1" to enter the waiting state for event triggers.
Then, set FTnRUN to "1" to start the counter by the software.
Set FTnRUN to "0" during the counter operation to stop the counter by the software.
Because the trigger signal is sampled at FTnCK when the external input (EXInTGO) is selected as counter
control by event triggers, the input pulse width should be set to Analog filter 200ns and three or more sampling
clocks. Pulses shorter than three sampling clock may be or may not be removed. Note that the sampling is not
performed when the timer interrupt is selected as the event trigger.
Figure 9-8 shows the sampling timing of the external input.
Figure 9-8 Sampling Timing of External Input
FTnCK
External input pin
Sampling clock
Waveform after the sampling
FTMn accepts external input
Содержание LAPIS SEMICONDUCTOR ML620Q503
Страница 2: ...ML620Q503 Q504 User s Manual Issue Date Apr 16 2015 FEUL620Q504 01...
Страница 18: ...Chapter 1 Overview...
Страница 32: ...Chapter 2 CPU and Memory Space...
Страница 44: ...Chapter 3 Reset Function...
Страница 50: ...Chapter 4 Power Management...
Страница 70: ...Chapter 5 Interrupts...
Страница 134: ...Chapter 6 Clock Generation Circuit...
Страница 161: ...Chapter 7 Time Base Counter...
Страница 170: ...Chapter 8 Timers...
Страница 183: ...Chapter 9 Function Timer FTM...
Страница 231: ...Chapter 10 Watchdog Timer...
Страница 239: ...Chapter 11 Synchronous Serial Port SSIO...
Страница 251: ...Chapter 12 Synchronous Serial Port with FIFO SSIOF...
Страница 283: ...Chapter 13 UART...
Страница 303: ...Chapter 14 UART with FIFO UARTF...
Страница 327: ...Chapter 15 I2 C Bus Interface...
Страница 344: ...Chapter 16 Port XT...
Страница 350: ...Chapter 17 Port 0...
Страница 361: ...Chapter 18 Port 1...
Страница 368: ...Chapter 19 Port2...
Страница 379: ...Chapter 20 Port 3...
Страница 395: ...Chapter 21 Port 4...
Страница 410: ...Chapter 22 Port 5...
Страница 426: ...Chapter 23 Melody Driver...
Страница 439: ...Chapter 24 RC Oscillation type A D Converter RC ADC...
Страница 462: ...Chapter 25 Successive Approximation Type A D Converter SA ADC...
Страница 479: ...Chapter 26 Analog Comparator...
Страница 489: ...Chapter 27 Flash Memory Control...
Страница 505: ...Chapter 28 Voltage Level Supervisor VLS...
Страница 517: ...Chapter 29 LLD circuit...
Страница 519: ...Chapter 30 On Chip Debug Function...
Страница 522: ...Appendixes...
Страница 552: ...Revision History...