63
Bits 15 to 0—IRQ15 to IRQ0 Flags (IRQ15F to IRQ0F): These bits indicate the status of
IRQ15 to IRQ0 interrupt requests.
Bit n
IRQnF
Description
0
[Clearing conditions]
(Initial value)
•
When 0 is written to IRQnF after reading IRQnF = 1
•
When interrupt exception handling is executed when low-level detection is set
(IRQnSCB = IRQnSCA = 0) and
IRQn
input is high
•
When IRQn interrupt exception handling is executed when falling, rising, or both-
edge detection is set (IRQnSCB = 1 or IRQnSCA = 1)
•
When the DTC is activated by an IRQn interrupt and the DISEL bit in MRB of the
DTC is 0
1
[Setting conditions]
•
When
IRQn
input goes low when low-level detection is set (IRQnSCB =
IRQnSCA = 0)
•
When a falling edge occurs in
IRQn
input when falling edge detection is set
(IRQnSCB = 0, IRQnSCA = 1)
•
When a rising edge occurs in
IRQn
input when rising edge detection is set
(IRQnSCB = 1, IRQnSCA = 0)
•
When a falling or rising edge occurs in
IRQn
input when both-edge detection is
set (IRQnSCB = IRQnSCA = 1)
(n = 15 to 0)
Содержание H8S/2670
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