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2.6 External Interrupt 1
2.6 External Interrupt 1
• The edges of three external-interrupt sources (INT10 to INT12) can be detected to
set the corresponding flag.
• An interrupt can be generated at the same time the flag is set.
• The three interrupts can release the STOP or SLEEP mode.
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Block diagram
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Registers
P35/INT11
MUX MUX
P34/TO/
EIR1 SL11 SL10 EIE1 EIR0 SL01 SL00 EIE0 EIC1
IRQ0
IRQ1
P36/INT12
MUX
EIR2 SL21 SL20 EIE2 EIC2
IRQ2
INT 10
Address: 0023H
Address: 0024H
EIC1
EIC2
8 bit
R/W External-interrupt control register 1
R/W External-interrupt control register 2