HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 152

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 5 Interrupt Controller
Bits 7 to 0—IRQ7 to IRQ0 flags (IRQ7F to IRQ0F): These bits indicate the status of IRQ7 to
IRQ0 interrupt requests.
Bit n
IRQnF
0
1
Note: n = 7 to 0
Rev.3.00 Mar. 26, 2007 Page 110 of 772
REJ09B0355-0300
Description
[Clearing conditions]
[Setting conditions]
Cleared by reading IRQnF flag when IRQnF = 1, then writing 0 to IRQnF flag
When IRQn 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 DTC is activated by IRQn interrupt while DISEL bit of MRB in DTC is 0.
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)
(Initial value)