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R8C/38T-A Group
10. Power Control
Under development Preliminary document
Specifications in this document are tentative and subject to change.
R01UH0241EJ0010 Rev.0.10
Page 119 of 730
Aug 05, 2011
10.4.4
Exiting Wait Mode
A reset or a peripheral function interrupt is used to exit wait mode.
Peripheral function interrupts are affected by the CM02 bit in the CM0 register. When the CM02 bit is 0
(peripheral function clock does not stop in wait mode), peripheral function interrupts other the A/D conversion
interrupt can be used to exit wait mode. When the CM02 bit is 1 (peripheral function clock stops in wait mode),
the peripheral functions that use the peripheral function clock are stopped. Only the peripheral function
interrupts that operate using external signals or the fHOCO, fOCO128, fOCO, fHOCO-F, and fLOCOWDT
clocks can be used to exit wait mode.
Table 10.3
Interrupts Used to Exit Wait Mode and Usage Conditions
Interrupt
When CM02 = 0
When CM02 = 1
Serial interface interrupt
Usable with an internal clock or external
clock supplied.
Usable with an external clock supplied.
Synchronous serial
communication unit/I2C bus
interface
Usable in all modes.
― (Do not use.)
Key input interrupt
Usable
A/D interrupt
― (Do not use.)
Timer RJ interrupt
Usable in all modes.
Usable without a filter in event counter
mode.
Usable when fOCO, fC1, or fC32 is
selected as the count source.
Timer RB2 interrupt
Usable in all modes.
― (Do not use.)
Timer RC interrupt
Usable in all modes.
Usable when fHOCO or fHOCO-F is
selected as the count source.
Timer RE2 interrupt
Usable in all modes.
Usable when fC1 is selected as the count
source.
INT interrupt
Usable
Usable (usable when INT0 to INT4 are
used without a filter.)
Voltage monitor 1 interrupt
Usable
Voltage monitor 2 interrupt
Usable
Oscillation stop detection
interrupt
Usable
― (Do not use.)