Clock Operation By Mode Transition; Normal → Idle → Normal Operation Mode Transition; Normal → Stop1 → Normal Operation Mode Transition; Figure 1.4 Normal → Stop1 → Normal Operation Mode Transition - Toshiba TXZ+ Series Reference Manual

1.3.4. Clock operation by mode transition

The clock operation at mode transition is shown below.
1.3.4.1. NORMAL → IDLE → NORMAL Operation mode transition
CPU stops at IDLE mode. The clock supply to a peripheral function holds a setting state. Please perform
operation/ stop by the register of each peripheral function, a clock supply setting function, etc. if needed.
Execution of Warming up operation is not performed at the time of the restart operation in NORMAL mode from
IDLE state.
After the command (WFI) execution which switches to IDLE mode, a program counter will show the next point
and will be in a CPU idle state. With a release source, it becomes a CPU reboot and, in the case of an enable
interrupt state, the shift to next point of transition command (WFI) will be done, after the interrupt processing by
release source.
1.3.4.2. NORMAL → STOP1 → NORMAL Operation mode transition
When returning to NORMAL mode from the STOP1 mode, warming up is started automatically.
Please set [CGWUPHCR]<WUPT[15:4]> to warming up time (163.4μs or more) before moving to the STOP1
mode.
Note: When releasing factor is RESET_N pin or LVD reset, CPU operation is started after the internal
processing time for reset and the waiting time till CPU running, not the warming-up time elapse.
When reset factor is not released after the internal processing time for reset elapses, starts measuring
elapsed time after releasing reset factor. CPU operation is started after the waiting time till CPU running
elapse.
NORMAL
Mode
fosc
Warming-up
fsys
(System clock)
Figure 1.4 NORMAL → STOP1 → NORMAL Operation mode transition
WFI instruction execution/
Sleep on exit
System clock stops
Clock Control and Operation Mode
Generate Rel e ase factor
STOP1
Warming up time
Start IHOSC1
Start Warming-up
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TXZ+ Family
TMPM3H Group(1)
NORMAL
Warming-up ends
System clock operation
2022-05-10
Rev. 1.3