h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 160

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 4 Exception Handling
4.4
Interrupt exception handling can be requested by seven external sources (NMI, IRQ5 to IRQ0) and
49 internal sources in the on-chip supporting modules. Figure 4-4 classifies the interrupt sources
and the number of interrupts of each type.
The on-chip supporting modules that can request interrupts include the watchdog timer (WDT),
16-bit timer-pulse unit (TPU), serial communication interface (SCI), data transfer controller
(DTC), PC break controller (PBC), A/D converter, controller area network (HCAN), motor
control PWM timer, and I
address.
NMI is the highest-priority interrupt. Interrupts are controlled by the interrupt controller. The
interrupt controller has two interrupt control modes and can assign interrupts other than NMI to
eight priority/mask levels to enable multiplexed interrupt control.
For details of interrupts, see section 5, Interrupt Controller.
Notes: The DTC, PBC, and IIC are not implemented in the H8S/2635 Group.
Rev. 6.00 Feb 22, 2005 page 100 of 1484
REJ09B0103-0600
Notes:
Numbers in parentheses are the numbers of interrupt sources.
1. When the watchdog timer is used as an interval timer, it generates
2. I
3. 2 sources in the H8S/2635 Group.
Interrupts
an interrupt request at each counter overflow.
2
C bus interface is available as an option in the H8S/2638, H8S/2639, and H8S/2630.
Interrupts
Figure 4-4 Interrupt Sources and Number of Interrupts
2
C bus interface (IIC). Each interrupt source has a separate vector
External
interrupts
Internal
interrupts
WDT *
TPU (26)
SCI (12)
DTC (1)
PBC (1)
A/D converter (1)
Motor control PWM (2)
HCAN (4) *
IIC *
NMI (1)
IRQ5 to IRQ0 (6)
2
(3) [Option]
1
(2)
3