r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 107

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Notes: 1. From any state except hardware standby mode, a transition to the reset state occurs whenever the RES pin
2. In every state, when the STBY pin becomes low, the hardware standby mode is entered.
3. For details, refer to section 25, Power-Down Modes.
goes low. A transition can also be made to the reset state when the watchdog timer overflows.
Bus-released state
handling state
Reset state *
Exception
Reset state
RES = High
1
Figure 2.13 State Transitions
External interrupt request
Program execution state
End of bus request
STBY = High,
RES = Low
Bus request
Rev. 1.00 Sep. 19, 2008 Page 77 of 1342
Hardware standby
Software standby
Power down state *
Sleep mode
mode *
mode
2
REJ09B0467-0100
Section 2 CPU
3