HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 145

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

5.1
5.1.1
The H8S/2245 Group controls interrupts by means of an interrupt controller. The interrupt
controller has the following features:
Two interrupt control modes
Priorities settable with ICR
Independent vector addresses
Nine external interrupts
DTC control
Either of two interrupt control modes can be set by means of the INTM1 and INTM0 bits
in the system control register (SYSCR).
An interrupt control register (ICR) is provided for setting interrupt priorities. Three priority
levels can be set for each module for all interrupts except NMI.
All interrupt sources are assigned independent vector addresses, making it unnecessary for
the source to be identified in the interrupt handling routine.
NMI is the highest-priority interrupt, and is accepted at all times. Rising edge or falling
edge can be selected for NMI.
Falling edge, rising edge, or both edge detection, or level sensing, can be selected for IRQ7
to IRQ0.
DTC activation is performed by means of interrupts.
Features
Overview
Section 5 Interrupt Controller
Rev.3.00 Mar. 26, 2007 Page 103 of 772
Section 5 Interrupt Controller
REJ09B0355-0300