Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 224 of 1823
Jul 31, 2019
RX23W Group 11. Low Power Consumption
Figure 11.2 Operating Modes
 The sub-clock oscillator does not stop when entering software standby mode.
 It is possible to return from sleep mode to the previous operating state used before entering sleep mode. However,
when a transition from low-speed operating mode to sleep mode is made, it is possible to enter the previous state
used before entering low-speed operating mode.
 After exiting the reset state, operation starts in middle-speed operating mode.
Note 1. The PLL and USB-dedicated PLL are usable when the power supply voltage is 2.4 V or above.
Table 11.3 Oscillator Usability in Each Mode
PLL
USB-dedicated
PLL HOCO LOCO IWDTCLK
Main Clock
Oscillator
Sub-Clock
Oscillator
High-speed operating mode Usable*
1
Usable*
1
Usable Usable Usable Usable Usable
Middle-speed operating mode Usable*
1
Usable*
1
Usable Usable Usable Usable Usable
Low-speed operating mode Not usable Not usable Not usable Not usable Usable Not usable Usable
Set the OPCCR register
Deep sleep mode
Sleep mode
Sleep mode
Deep sleep mode
Deep sleep mode
Sleep mode
Sleep mode
Deep sleep mode
Software
standby mode
Software
standby mode
Software
standby mode
Software
standby mode
High-speed
operating mode
Low-speed
operating mode
Middle-speed
operating mode
Low-speed
operating mode
Reset state
Exit the reset state
Set
the SOPCCR
register
Set
the SOPCCR
register
: WAIT instruction
: Interrupt
*1
Note 1. When a transition from low-speed operating mode to sleep mode is made, it is possible to enter the previous state used
before entering low-speed operating mode.
*1

Renesas RX Series Specifications

General

Brand	Renesas
Model	RX Series
Category	Microcontrollers
Language	English