h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 88

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 2 CPU
Rev. 2.00 Dec. 05, 2005 Page 50 of 724
REJ09B0200-0200
Notes: 1.
RES = high
Exception-handling state
2.
3.
Bus-released state
From any state except hardware standby mode, a transition to the reset state occurs whenever RES
goes low. A transition can also be made to the reset state when the watchdog timer overflows.
From any state, a transition to hardware standby mode occurs when STBY goes low.
For details, refer to section 21, Power-Down Modes.
Reset state
End of bus
request
End of
exception
handling
*1
Figure 2.13 State Transitions
Bus
request
External interrupt
request
STBY = high, RES = low
Request for
exception
handling
Program execution
End of bus request
Bus request
state
Interrupt
request
SLEEP
instruction
with
SSBY = 1
SLEEP
instruction
with
SSBY = 0
Hardware standby mode
Software standby mode
Power-down state
Sleep mode
*3
*2