h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 101

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

4.5
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. The source to start interrupt exception handling and the vector
address differ depending on the product. For details, refer to section 5, Interrupt Controller.
Interrupt exception handling is conducted as follows:
1. The values in the program counter (PC), condition code register (CCR), and extended control
2. The interrupt mask bit is updated and the T bit is cleared to 0.
3. A vector address corresponding to the interrupt source is generated, the start address is loaded
register (EXR) are saved to the stack.
from the vector table to the PC, and program execution begins from that address.
Interrupts
Rev. 3.00 Oct 04, 2005 page 61 of 598
Section 4 Exception Handling
REJ09B0155-0300