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M16C/29 Datasheet(PDF) 99 Page - Renesas Technology Corp

Part # M16C/29
Description  RENESAS MCU M16C FAMILY / M16C/Tiny SERIES
PDF  499 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M16C/29 Datasheet(HTML) 99 Page - Renesas Technology Corp

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9. Interrupts
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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 I flag in the the FLG register, IPL, and bits ILVL2 to ILVL0 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
shows the interrupt control registers.
Also, the following interrupts share a vector and an interrupt control register.
________
•INT4 and SIO3
________
•INT5 and SIO4
•A/D converter and key input interrupt
•IC/OC base timer and SCL/SDA
•IC/OC interrupt 1 and I2C bus interface
An interrupt request is set by bits IFSR6 and IFSR7 in the IFSR register and bits IFSR27, IFSR26, and
IFSR21 in the IFSR2A register. Figure 9.4 shows registers IFSR register and IFSR2A.



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