Datasheet

Section 3 Exception Handling
Rev. 3.00 Mar. 15, 2006 Page 62 of 526
REJ09B0060-0300
CCR I bit 1
Set port mode register bit
Execute NOP instruction
Interrupts masked. (Another possibility
is to disable the relevant interrupt in
interrupt enable register 1.)
After setting the port mode register bit,
first execute at least one instruction
(e.g., NOP), then clear the interrupt
request flag to 0.
Interrupt mask cleared
Clear interrupt request flag to 0
←
CCR I bit 0
←
Figure 3.4 Port Mode Register Setting and Interrupt Request Flag Clearing Procedure