HD64F3039F18 Datasheet, PDF (109/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

5.1.3 Pin Configuration
Table 5.1 lists the interrupt pins.
Table 5.1 Interrupt Pins
Name
Nonmaskable interrupt
Abbreviation
NMI
I/O
Input
External interrupt
request 5, 4, 1, and 0
IRQ₅, IRQ₄, and
IRQ₁, IRQ₀
Input
Section 5 Interrupt Controller
Function
Nonmaskable interrupt, rising edge or
falling edge selectable
Maskable interrupts, falling edge or level
sensing selectable
5.1.4 Register Configuration
Table 5.2 lists the registers of the interrupt controller.
Table 5.2 Interrupt Controller Registers
Address*¹
Name
H'FFF2
System control register
H'FFF4
IRQ sense control register
H'FFF5
IRQ enable register
H'FFF6
IRQ status register
H'FFF8
Interrupt priority register A
H'FFF9
Interrupt priority register B
Notes: 1. Lower 16 bits of the address.
2. Only 0 can be written, to clear flags.
Abbreviation
SYSCR
ISCR
IER
ISR
IPRA
IPRB
R/W
R/W
R/W
R/W
R/(W)*²
R/W
R/W
Initial Value
H'0B
H'00
H'00
H'00
H'00
H'00
Rev.3.00 Mar. 26, 2007 Page 85 of 682
REJ09B0353-0300