M16C Datasheet, PDF (57/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Preliminary Specifications REV.B
Mitsubishi microcomputers
Specifications in this manual are tentative and subject to change.
M16C / 6N Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Interrupts
Interrupt Control
Descriptions are given here regarding how to enable or disable interrupts and how to set the priority to be
accepted. What is described here does not apply to non-maskable interrupts.
Enable or disable a maskable interrupt using the interrupt enable flag (I flag), interrupt priority selection bit,
or processor interrupt priority level(IPL). Whethre an interrupt request is present or absent is indicated by
the interrupt request bit. The interrupt request bit and the interrupt priority level selection bie are located in
the interrupt control register of each interrupt. Also, the interrupt enable flag (I flag) and the IPL are located
in the flag register (FLG).
Figure 6-3 shows the memory map of the interrupt control registers.
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