Datasheet

Section 2 CPU
Rev. 3.00 Sep. 28, 2009 Page 64 of 910
REJ09B0350-0300
Program execution
state
Sleep mode
Exception-handlin
g state
Software standby mode
RES = high
Reset state
Power-down state
*2
*1
Notes: 1.
2.
From any state, a transition to the reset state is made whenever the RES pin
goes low. A transition can also be made to the reset state when the watchdog timer overflows.
The power-down state also includes watch mode. For details, refer to section 24, Power-Down Modes.
SLEEP
instruction
with
LSON = 0 and
SSBY = 0
Interrupt
request
Request for
exception
handling
End of
exception
handling
External interrupt
request
SLEEP
instruction
with
LSON = 0,
PSS = 0, and
SSBY = 1
Figure 2.13 State Transitions