TMPM330 - Keil

5.7 Operation Modes
Under development
TMPM330 (rev0.4) 5-13
TMPM330
Two operation modes, NORMAL and SLOW, are available. The features of each mode are described
below.
5.7.1 NORMAL Mode
This mode is to operate the CPU core and the peripheral hardware by using the high-speed clock.
It is shifted to the NORMAL mode after reset. The dual clock operation that uses the low-speed
clock as well is also available.
5.7.2 SLOW Mode
This mode is to operate the CPU core and the peripheral hardware by using the low-speed clock
with high-speed clock stopped. This mode allows the I/O port, real time clock (RTC), CEC and RMC
(remote control signal preprocessor) functions to operate.
(Note) Be sure to stop the peripheral functions except for the CPU, RTC, I/O port, CEC and
RMC before the transition to SLOW mode.
5.8 Low Power Consumption Mode
The TMPM330 has three low power consumption modes: IDLE, SLEEP and STOP. To shift to the low
power consumption mode, specify the mode in the system control register STBYCR0 and
execute the WFI (Wait For Interrupt) instruction. In this case, execute reset or generate the interrupt to
release the mode. Releasing by the interrupt requires settings in advance. See chapter 6 for details.
(Note) Transition to the low power consumption mode by executing the WFE (Wait For Event)
instruction is prohibited. The TMPM330 does not offer any event for releasing the low
power consumption mode.
The features of each mode are described below.
Clock/ Mode Control