Warming-Up At The Release Of Low Power Consumption Mode; Table 1.12 Warming-Up - Toshiba TXZ+ TMPM4KLFYAUG Reference Manual

●
Released by an interrupt request
When interrupt cancels a Low Power Consumption mode, it is necessary to prepare so that interrupt may be
detected by CPU. The interrupt used for release in STOP1 mode needs to set up CPU, and needs to set up
detection by INTIF.
●
Released by Non-Maskable Interrupt (NMI)
The WDT interrupt (INTWDT0, Protect A mode only.) or the LVD interrupt (INTLVD) can perform release
from the Low Power Consumption modes.
●
Released by reset
The reset can perform release from all the Low Power Consumption modes.
When released by reset, the registers will be initialized in NORMAL mode after release. For details, refer to
"3.2.6.1. The reset factor and the reset range".
●
Released by SysTick interrupt
SysTick interrupt is available only in IDLE mode.
Refer to "Interrupt" chapter of the reference manual "Exception" for details of interrupt.

1.3.3.2. Warming-up at the release of Low Power Consumption mode

Warming-up may be required because of stability of an internal oscillator at the time of mode transition.
When the transition from STOP1 mode to NORMAL mode is done, the internal oscillation is selected
automatically and the warming-up timer starts up. The Output of a system clock is started after warming-up time
progress.
For this reason, before executing the command which move to the STOP1 mode, set up warming-up time by
[CGWUPHCR]<WUPT[15:4]>. For the setting method, refer to "1.2.4.1. The warming-up timer for a high speed
oscillation".
The following table shows the necessity of a warming-up setup at the time of each Operation mode transition.

Table 1.12 Warming-up

Operation mode transition
NORMAL >>> IDLE
NORMAL >>> STOP1
IDLE >>> NORMAL
STOP1 >>> NORMAL
28 / 68
Clock Control and Operation Mode
Warming-up setup
Not required.
Not required.
Not required.
Required.
TXZ+ Family
TMPM4K Group(2)
2023-12-25
Rev. 3.0