1032
ISR—IRQ Status Register
H'FE15
Interrupt Controller
7
IRQ7F
0
R/(W)
*
6
IRQ6F
0
R/(W)
*
5
IRQ5F
0
R/(W)
*
4
IRQ4F
0
R/(W)
*
3
IRQ3F
0
R/(W)
*
0
IRQ0F
0
R/(W)
*
2
IRQ2F
0
R/(W)
*
1
IRQ1F
0
R/(W)
*
Note:
*
Only 0 can be written to these bits (to clear these flags).
IRQ7 to IRQ0 flag
0
1
(n= 7 to 0)
Bit
Initial value
R/W
:
:
:
[Clearing]
(1) Writing 0 to flag IRQnF after reading IRQnF=1;
(2) When interrupt exception processing is executed when set for LOW-level detection
(IRQnSCB=IRQnSCA=0) and, in addition, the IRQn input level is HIGH;
(3) When IRQn interrupt exception processing is executed when set for rising edge or
falling edge or both rising edge and falling edge detection (IRQnSCB=1 and
IRQnSCA=1);
(4) When the DTC starts due to IRQn interrupt and the DTC MRB DISEL bit is 0.
[Setting]
(1) When the IRQn input level changes to LOW when set for LOW level detection
(IRQnSCB=IRQnSCA=0);
(2) When a falling edge occurs at the IRQn input when set for falling edge detection
(IRQnSCB=0, IRQnSCA=1);
(3) When a rising edge occurs at the IRQn input when set for rising edge detection
(IRQnSCB=1, IRQnSCA=0);
(4) When either a falling edge or rising edge occurs at the IRQn input when set for both
falling edge and rising edge detection (IRQnSCB=IRQnSCA=1).
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...