Cypress FM4 Series - Page 198

CHAPTER 6: Low Power Consumption Mode
198 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
Low-speed CR Mode Transition Diagram
In low speed CR mode, the low speed CR oscillator clock is used as the master clock.
Figure 2-4 Low-speed CR Mode Transition Diagram
Low speed CR timer mode
STOP mode
Program reset
RTC mode
Low speed CR oscillation
stabilization wait
Other mode
C-1 C-2
C-4
C-5
C-3
C-8
C-7
C-6 SLEEP mode (SLEEPDEEP = 0, WFI/WFE instruction)
C-7 Interrupt
C-9
C-8 TIMER mode (SLEEPDEEP = 1, RTCE = 0,
DSTM = 0, STM = 00, WFI/WFE instruction)
C-7C-10
C-10 STOP mode (SLEEPDEEP = 1, RTCE = 0,
DSTM = 0, STM = 10, WFI/WFE instruction)
C-7
C-11
C-11 Transition to other mode
Deep standby RTC mode
Release of deep standby
transition reset
C-14
C-12
C-13 Deep standby stop mode
(SLEEPDEEP = 1, RTCE = 0,
DSTM = 1, STM = 10, WFI/WFE instruction)
Low speed CR sleep mode
C-6
C-7
C-9 RTC mode (SLEEPDEEP = 1, RTCE = 1,
DSTM = 0, STM = 10, WFI/WFE instruction)
Deep standby stop mode
C-13
High speed CR oscillation
stabilization wait and low speed
CR oscillation stabilization wait in
Figure 2-1
C-12 Deep standby RTC mode
(SLEEPDEEP = 1, RTCE = 1,
DSTM = 1, STM = 10, WFI/WFE instruction)
C-14 Deep standby return factor
C-14
Low speed CR run mode
C-1 Transition to RUN mode
(oscillation stabilized)
C-2 Start of low speed CR oscillation
C-4 Software reset
C-5 Release of software reset
C-3 End of oscillation stabilization wait
Deep standby transition reset
Deep standby transition reset