HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 171

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

5.1
• Two interrupt control modes
• Priorities settable with IPR
• Independent vector addresses
• Seventeen external interrupts
• DTC and DMAC control
Any of two interrupt control modes can be set by means of the INTM1 and INTM0 bits in the
interrupt control register (INTCR).
An interrupt priority register (IPR) is provided for setting interrupt priorities. Eight priority
levels can be set for each module for all interrupts except NMI. NMI is assigned the highest
priority level of 8, and can be accepted at all times.
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 IRQ15 to IRQ0.
DTC and DMAC activations are performed by means of interrupts.
Features
Section 5 Interrupt Controller
Rev.7.00 Mar. 18, 2009 page 103 of 1136
Section 5 Interrupt Controller
REJ09B0109-0700