h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 156

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 5 Interrupt Controller
5.1.2
A block diagram of the interrupt controller is shown in figure 5.1.
5.1.3
Table 5.1 summarizes the pins of the interrupt controller.
Table 5.1
Name
Nonmaskable interrupt
External interrupt
requests 7 to 0
Key input interrupt
requests 7 to 0
Rev. 4.00 Jun 06, 2006 page 102 of 1004
REJ09B0301-0400
Internal interrupt
requests
SWDTEND to IICI1
Legend:
ISCR:
IER:
ISR:
ICR:
SYSCR:
Block Diagram
Pin Configuration
NMI input
IRQ input
SYSCR
Interrupt Controller Pins
IRQ sense control register
IRQ enable register
IRQ status register
Interrupt control register
System control register
Figure 5.1 Block Diagram of Interrupt Controller
Interrupt controller
Symbol
NMI
IRQ7 to IRQ0 Input
KIN7 to KIN0
INTM1 INTM0
NMIEG
ISCR
NMI input unit
IRQ input unit
ISR
IER
I/O
Input
Input
determination
Function
Nonmaskable external interrupt; rising or
falling edge can be selected
Maskable external interrupts; rising, falling, or
both edges, or level sensing, can be selected.
Maskable external interrupts: falling edge or
level sensing can be selected.
Priority
ICR
Interrupt
request
Vector
number
I, UI
CPU
CCR