h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 831

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Notes:
Program execution state
SLEEP instruction
SSBY = 1, PSS = 1,
DTON = 1, LSON = 0
After the oscillation
stabilization time
(STS2 to STS0), clock
switching exception
processing
When a transition is made between modes by means of an interrupt, the transition cannot be made
on interrupt source generation alone. Ensure that interrupt handling is performed after accepting the
interrupt request.
Always select high-speed mode before making a transition to watch mode or sub-active mode.
1.
2.
3.
NMI, IRQ15 to IRQ0, KIN9 to KIN0, WUE15 to WUE8, and WDT1 interrupts
NMI, IRQ15 to IRQ0, KIN9 to KIN0, WUE15 to WUE8, WDT0, WDT1, TMR0,
and TMR1 interrupts
NMI, IRQ15 to IRQ0, KIN9 to KIN0, and WUE15 to WUE8 interrupts
SCK2 to
SCK0 are
0
High-speed mode
Sub-active mode
Medium-speed
(main clock)
(main clock)
(sub-clock)
Reset state
mode
Figure 27.1 Mode Transition Diagram
: Transition after exception processing
RES pin = High
SLEEP instruction
SSBY = 1, PSS = 1,
DTON = 1, LSON = 1
Clock switching
exception processing
SCK2 to
SCK0 are
not 0
STBY pin = High
RES pin = Low
SLEEP instruction
Interrupt *
LSON bit = 0
External
interrupt *
Any interrupt
SLEEP instruction
SLEEP
instruction
Interrupt *
Interrupt *
LSON bit = 1
SLEEP
instruction
SLEEP
instruction
3
1
Rev. 3.00 Jan 25, 2006 page 779 of 872
2
1
Section 27 Power-Down Modes
SSBY = 0, LSON = 0
: Power-down mode
SSBY = 1,
PSS = 0, LSON = 0
SSBY = 0,
PSS = 1, LSON = 1
SSBY = 1,
PSS = 1, DTON = 0
Program halt state
STBY pin = Low
Sub-sleep mode
standby mode
standby mode
Watch mode
(main clock)
Sleep mode
(sub-clock)
(sub-clock)
Hardware
Software
REJ09B0286-0300