Datasheet
Section 5 Interrupt Controller 
Page 116 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 Group
5.3.4  IRQ Sense Control Registers H and L (ISCRH, ISCRL) 
ISCR select the source that generates an interrupt request at pins IRQ15 to IRQ0. 
•  ISCRH (H8S/2426 Group only) 
Bit  Bit Name  Initial Value  R/W  Description 
15 
14 
IRQ15SCB 
IRQ15SCA 
0 
0 
R/W 
R/W 
IRQ15 Sense Control B 
IRQ15 Sense Control A 
00: Interrupt request generated at IRQ15 input low 
level 
01: Interrupt request generated at falling edge of 
IRQ15 input 
10: Interrupt request generated at rising edge of 
IRQ15 input 
11: Interrupt request generated at both falling and 
rising edges of IRQ15 input 
13 
12 
IRQ14SCB 
IRQ14SCA 
0 
0 
R/W 
R/W 
IRQ14 Sense Control B 
IRQ14 Sense Control A 
00: Interrupt request generated at IRQ14 input low 
level 
01: Interrupt request generated at falling edge of 
IRQ14 input 
10: Interrupt request generated at rising edge of 
IRQ14 input 
11: Interrupt request generated at both falling and 
rising edges of IRQ14 input 
11 
10 
IRQ13SCB 
IRQ13SCA 
0 
0 
R/W 
R/W 
IRQ13 Sense Control B 
IRQ13 Sense Control A 
00: Interrupt request generated at IRQ13 input low 
level 
01: Interrupt request generated at falling edge of 
IRQ13 input 
10: Interrupt request generated at rising edge of 
IRQ13 input 
11: Interrupt request generated at both falling and 
rising edges of IRQ13 input 










