RX610 Group
8. Low Power Consumption
R01UH0032EJ0120 Rev.1.20
Page 171 of 1006
Feb 20, 2013
All interrupts
: Transition after exception handling
Reset state
Program execution state
Program stopped state
All-module clock stop mode
Software standby
mode
Deep software
standby mode
Internal reset state
Sleep mode
SBYCR.SSBY = 0
MSTPCRA.ACSE = 1
MSTPCRA = FFFFFF[C-F]Fh
MSTPCRB = FFFFFFFFh
External interrupt
*
4
External interrupt
*
3
WAIT instruction
*
1
(SBYCR.SSBY = 1)
Interrupt
*
2
WAIT instruction
*
1
WAIT instruction
*
1
(DPSBYCR.DPSBY = 0 and
no external interrupt is generated)
RES# pin = High
Notes:
SBYCR.SSBY = 0
(DPSBYCR.DPSBY = 1 and
no external interrupt is generated
*
5
)
1. When a WAIT instruction is executed, if a canceling source interrupt is received during a transition to the program
stopped state, the processing does not shift to the program stopped state and the interrupt exception handling starts.
2. NMI, IRQ0 to IRQ15, 8-bit timer interrupts, and watchdog timer interrupts.
However, 8-bit timer interrupts are enabled when the MSTPA5 or MSTPA4 bit in MSTPCRA is 0.
3. NMI and IRQ0 to IRQ15. However, IRQ is enabled only when the corresponding bit in SSIER of the ICU is 1.
4. NMI and side A of IRQ0 to IRQ3
However, NMI and IRQ are enabled only when the corresponding bit in DPSIER is 1.
5. If a conflict between a transition to deep software standby mode and generation of software standby mode canceling
source occurs, a mode transition may be made from software standby mode to program execution state through the
interrupt exception handling. In this case, transition to deep software standby mode does not occur.
For details, see section 8.7, Usage Notes.
6. When an interrupt source listed in note 4. is generated, an internal reset (deep software standby reset) is generated
for the time period specified with the DPSWCR.WTSTS[5:0] bits. Along with cancellation of an internal reset, deep
software standby mode is cancelled. When a deep software standby mode is cancelled, the program execution state
is entered, and reset exception handling is started.
When the RES# pin is driven low in any state, a transition to the reset state is made.
Figure 8.1 Mode Transitions
Summary of Contents for RX600 Series
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