
ML62Q1000 Series User's Manual
Chapter 29 Safety Function
FEUL62Q1000
29-15
29.3.3 Clock Mutual Monitoring Function
This function monitors if the low-speed clock (low-speed RC oscillation circuit) and high-speed clock (PLL oscillation
circuit) are normally oscillating.
The 16-bit timer and functional timer can be used to confirm the oscillation.
Figure 29-3 shows an example of the monitoring operation for the high-speed clock (PLL oscillation circuit) oscillation.
Figure 29-3 High-Speed Clock (PLL Oscillation Circuit) Oscillation Monitoring Example
Figure 29-4 describes the setting for the monitoring example shown in Figure 29-3.
Operation clock
(low-speed clock)
FTnC
Valid A
0000
Approximately 30.5 μs
TMHnC
0001
0000
0000
16-bit timer
0001
0000
0001
0000
0001
TMnINT
Valid B
Functional timer
Trigger start
Trigger stop
Trigger start
Trigger stop
FTMnINT
Trigger counter stop interrupt enabled
Operation clock
(high-speed clock)
TMHnC:
16-bit timer n counter register
TMHnINT: 16-bit timer n interrupt
FTnC:
FTMn counter register
FTMnINT: FTMn interrupt
Read FTnC and check value
0
Counter clear at trigger counter start enabled
0
Approx. 42/62 ns
Repeat mode
Содержание ML62Q1000 Series
Страница 17: ...Chapter 1 Overview...
Страница 112: ...Chapter 2 CPU and Memory Space...
Страница 154: ...Chapter 3 Reset Function...
Страница 166: ...Chapter 4 Power Management...
Страница 196: ...Chapter 5 Interrupts...
Страница 248: ...Chapter 6 Clock generation Circuit...
Страница 274: ...Chapter 7 Low Speed Time Base Counter...
Страница 291: ...Chapter 8 16 Bit Timer...
Страница 320: ...Chapter 9 Functional Timer FTM...
Страница 382: ...Chapter 10 Watchdog Timer...
Страница 402: ...Chapter 11 Serial Communication Unit...
Страница 456: ...Chapter 12 I2 C Bus Unit...
Страница 491: ...Chapter 13 I2 C Master...
Страница 512: ...Chapter 14 DMA Controller...
Страница 531: ...Chapter 15 Buzzer...
Страница 550: ...Chapter 16 Simplified RTC...
Страница 559: ...Chapter 17 GPIO...
Страница 594: ...Chapter 18 External Interrupt Function...
Страница 612: ...Chapter 19 CRC Generator...
Страница 632: ...Chapter 20 Analog Comparator...
Страница 644: ...Chapter 21 D A Converter...
Страница 655: ...Chapter 22 Voltage Level Supervisor...
Страница 676: ...Chapter 23 Successive Approximation Type A D Converter...
Страница 709: ...Chapter 24 Regulator...
Страница 714: ...Chapter 25 Flash Memory...
Страница 743: ...Chapter 26 Code Option...
Страница 750: ...Chapter 27 LCD Driver...
Страница 788: ...Chapter 28 On Chip Debug Function...
Страница 795: ...Chapter 29 Safety Function...
Страница 813: ...Appendix A...
Страница 881: ...Revision History...