
ML62Q1000 Series User's Manual
Chapter 22 Voltage Level Supervisor
FEUL62Q1000
22-20
Figure 22-11 shows an example of the operation timing diagram with sampling in single mode 2.
Figure 22-11 Operation Timing Diagram with Sampling (Single Mode 2)
The operation shown in Figure 22-11 is described below:
(1)
Choose a detection voltage by the VLS0LV3 to VLS0LV0 bits of the VLS0LV register.
(2)
Choose "Sampling with HSCLK" or "Sampling with LSCLK" by the VLS0SM1 and VLS0SM0 bits of the
VLS0SMP register.
(3)
Write "0x01" to VLS0AMD[1:0] bits of VLS0MOD register in order to choose the single mode 2.
(4)
Choose an operation function by the VLS0SEL1 and VLS0SEL0 bits of the VLS0MOD register.
(5)
Write "1" to the VLS0EN bit to enable VLS0 operation.
(6)
Wait until the comparison result of the VLS0 comparator is stabilized.
(7)
If V
DD
is below the threshold voltage (V
VLSF
) after three cycles of the sampling clock, the VLS0F bit is set to "1"
and the VLS0 interrupt (low voltage) is generated. If V
DD
is equal to or above the threshold voltage (V
VLSF
), the
VLS0F bit is cleared to "0" and the VLS0 interrupt (low voltage) is not generated.
(8)
After the interrupt is generated, the VLS0EN bit is set to "0" and VLS0 is disabled again.
[Note]
Ÿ
Entering the STOP/STOP-D mode is not allowed while the single mode operation is in progress. Enter
the STOP/STOP-D mode after the single mode operation is completed (VLS0EN bit="0").
Ÿ
If VDD is higher than the specified threshold voltage, the VLS0 interrupt is not generated.
(1)~(5)
↓
Stabilization
time
V
VLSF
V
SS
(6)
↓
(7)
↓
(8)
↓
Sampling clock
VLS0EN bit
Threshold voltage
VLS0 comparator
comparison result
V
DD
VLS0RF
VLS0F
VLS0 interrupt
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...