The interrupt is not retained when the IRQ interrupt is set to the level detection.
When it is level detection interrupts, the interrupt request signal is generated during the duration of IRQ pins in low level, and the interrupt request signal is not generated during the duration of IRQ pins in high level.
Therefore, it is necessary for IRQ pin to be in low level until the interrupt is received.
|SH7083, SH7084, SH7085, SH7086|
|SH7047, SH7049, SH7105, SH7107, SH7109|
|SH7046, SH7148, SH7101, SH7048, SH7104, SH7106, SH7108|
|SH7040, SH7041, SH7042, SH7043, SH7044, SH7045|
|SH7014, SH7016, SH7017|