M16C26A Datasheet, PDF (83/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)
9. Interrupt
9.3 Interrupt Control
The following describes how to enable/disable the maskable interrupts, and how to set the priority in which
order they are accepted. What is explained here does not apply to nonmaskable interrupts.
Use the I flag in the FLG register, IPL, and the ILVL2 to ILVL0 bits in the each interrupt control register to
enable/disable the maskable interrupts. Whether an interrupt is requested is indicated by the IR bit in each
interrupt control register.
Figure 9.3.1 shows the interrupt control registers.
Figure 9.3.2 shows the IFSR, IFSR2A registers.
Rev. 2.00 Feb.15, 2007 ^{page 66} of 329
REJ09B0202-0200