Renesas H8 Series Hardware Manual page 162

Section 5 Power-Down Modes
Reset state
Program
halt state
Standby
mode
Watch
mode
Mode Transition Conditions (1)
LSON MSON SSBY
*a
0 0
*b
0 1
*c *
1
*d *
0
*e * *
*f
0 0
*g
0 1
*h
0 1
*i *
1
*j
0 0
Notes: 1. A transition between different modes cannot be made to occur simply because an interrupt
request is generated. Make sure that interrupts are enabled.
2. Details on the mode transition conditions are given in the explanations of each mode,
in sections 5.2 to 5.8.
Rev. 7.00 Mar 10, 2005 page 120 of 652
REJ09B0042-0700
Program
execution state
Active
(high-speed)
mode
*4
*4
Active
(medium-speed)
mode
*1
*1
SLEEP
*e
instruction
Subactive
*1 mode
Mode Transition Conditions (2)
TMA3 DTON
*
0 0
*
0 0
0 1 0
1 0 0
1 1 0
*
0 1
*
0 1
1 1 1
1 1 1
1 1 1
*: Don't care
Figure 5.1 Mode Transition Diagram
SLEEP
*a
instruction
*3
SLEEP
*b
instruction
*3
SLEEP
*c
instruction
*2
Interrupt Sources
*1
Timer A, Timer F, Timer G interrupt, IRQ0 interrupt,
WKP7 to WKP0 interrupts
*2
Timer A, Timer C, Timer F, Timer G, SCI3 interrupt,
IRQ4, IRQ3, IRQ1 and IRQ0 interrupts, IRQAEC,
WKP7 to WKP0 interrupts, AEC
*3
All interrupts
*4
IRQ1 or IRQ0 interrupt, WKP7 to WKP0 interrupts
Program
halt state
Sleep
(high-speed)
mode
Sleep
(medium-speed)
mode
Subsleep
mode
Power-down modes