
 
Section 5 Interrupt Controller 
R01UH0310EJ0500 Rev. 5.00    Page 147 of 1384 
Sep 25, 2012     
 
H8S/2426, H8S/2426R, H8S/2424 Group 
5.7.6  IRQ Status Register (ISR) 
Depending on the pin status following a reset, IRQnF may be set to 1. Therefore, always read ISR 
and clear it to 0 after resets.