HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 663

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Notes: 1.
Program execution state
SLEEP instruction
SSBY = 1, PSS = 1,
DTON = 1, LSON = 0
After the oscillation
stabilization time
(STS2 to STS0), clock
switching exception
handling
• When a transition is made between modes by means of an interrupt, the transition cannot be made
• Always select high-speed mode before making a transition to watch mode or sub-active mode.
2.
3.
on interrupt source generation alone. Ensure that interrupt handling is performed after accepting the
interrupt request.
NMI, IRQ0 to IRQ2, IRQ6, IRQ7, and WDT1 interrupts
NMI, IRQ0 to IRQ7, WDT0, WDT1, TMR0, and TMR1 interrupts
NMI, IRQ0 to IRQ2, IRQ6, and IRQ7 interrupts
SCK2 to
SCK0 are
0
High-speed mode
Subactive mode
Medium-speed
(main clock)
(main clock)
Reset state
(subclock)
mode
: Transition after exception processing
RES pin = High
SLEEP instruction
SSBY = 1, PSS = 1,
DTON = 1, LSON = 1
Clock switching
exception handling
SCK2 to
SCK0 are
not 0
Figure 26.1 Mode Transition Diagram
STBY pin = High
RES pin = Low
SLEEP instruction
External
interrupt *
Interrupt *
LSON bit = 0
SLEEP instruction
SLEEP
instruction
Interrupt *
Any interrupt
Interrupt *
LSON bit = 1
SLEEP
instruction
SLEEP
instruction
3
1
2
1
Rev. 2.0, 08/02, page 623 of 788
: Power-down mode
SSBY = 0, LSON = 0
SSBY = 1,
PSS = 0, LSON = 0
SSBY = 0,
PSS = 1, LSON = 1
SSBY = 1,
PSS = 1, DTON = 0
Program halt state
STBY pin = Low
Subsleep mode
standby mode
standby mode
Watch mode
(main clock)
Sleep mode
(subclock)
(subclock)
Hardware
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