
ML62Q1000 Series User's Manual
Chapter 6
Clock Generation Circuit
FEUL62Q1000
6-22
6.3.3 WDT Clock
For the WDT clock (WDTCLK), the clock with divided frequency of low-speed clock (1.024 kHz) or the WDT
dedicated RC1K oscillation clock (approx. 1 kHz) can be chosen by the code option. If the accuracy of the watch dog
timer is required, choose the clock with divided frequency of the low-speed clock.
The WDT operation clock stops oscillation in the STOP/STOP-D mode.
After the STOP/STOP-D mode is released, supply of the WDT clock will be started after the stabilization time (one
count of the WDT RC1K oscillation circuit clock).
See Chapter 26 "Code Option" for details on how to set the code option.
Figure 6-11 shows the configuration of the WDT RC oscillation circuit.
Figure 6-12 shows WDT clock operation waveforms at the start of the WDT RC oscillation circuit and in the
STOP/STOP-D mode.
Figure 6-11 WDT RC Oscillation Circuit Configuration
Figure 6-12 Operation Waveforms at Start of WDT RC Oscillation Circuit and in STOP/STOP-D Mode
V
DDL
Stabilization time one count
(When STOP/STOP-D mode
released)
WDT dedicated
RC1K oscillation
(approx. 1 kHz)
Enable
oscillation
STOP/STOP-D mode signal
Code option
Control circuit
Approx.1.024 kHz with divided
frequency of low-speed clock (LSCLK)
WDT clock
WDTCLK
WDT
RC oscillation waveform
STOP
mode
WDTCLK
supply start
CPU operation
start
Power supply
(V
DD
)
Power-on reset
(POR)
WDTCLK
supply start
External interrupt
occurrence
At the power on, the clock is
supplied to WDT after 512 counts of
the low-speed RC oscillation clock.
RC1K: one count
RC32K: max. 32 counts
WDT RC1K oscillation waveform
WDT RC oscillation waveform
WDT RC
oscillation waveform
WDT clock
(WDTCLK)
STOP/STOP-D
mode
WDT
RC oscillation waveform
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...