Fujitsu FR81S Manuale Utente
CHAPTER 12: INTERRUPT CONTROL (INTERRUPT
CONTROLLER)
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: INTERRUPT CONTROL (INTERRUPT CONTROLLER)
FUJITSU SEMICONDUCTOR CONFIDENTIAL
13
5.5. Recovering From Standby Mode (Power shutdown)
The recovering from standby mode (Power shutdown) is show below.
When the interrupt level is higher than ICR=0x1F (interrupt disable) and the standby return factor is more
effective in the state that the interrupt factor has been generated, the thing that changes to the state of the
power supply interception cannot be done. The instruction execution is continued as it is.
It returns immediately through the power supply interception return sequence though it changes to the state
of the power supply interception because the interruption level does not become a standby return factor in
the state that ICR=0x1F (interrupt disable) and the interrupt factor have been generated once because it is a
state with the factor of the power supply interception return. (It is executed from the reset vector. )
MB91520 Series
MN705-00010-1v0-E
474