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Panasonic MN101C77C User Manual

Page 134

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Chapter 3 Interrupts

III - 40

External Interrupts

Figure 3-3-2 External Interrupt 2 Interface and External Interrupt 3 Interface, Block Diagram

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External Interrupt 2 Interface, External Interrupt 3 Interface, Block Diagram

M
U
X

P22/IRQ2

M
U
X

16-bit timer

0

7

IRQ2IR

IRQ2IE

-

-

REDG2

IRQ2ICR

IRQ2LV1

IRQ2LV0

-

Edge detection

M

U
X

P23/IRQ3

M

U
X

0

7

IRQ3IR

IRQ3IE

-

-

REDG3

IRQ3ICR

IRQ3LV1

IRQ3LV0

-

Edge detection

0

7

EDGSEL0

EDGSEL1

EDGSEL3

EDGSEL4

Reserved

EDGDT

-

-

EDGSEL2

IRQ2 interrupt request/

16-bit timer

IRQ3 interrupt request/

Polarity

Inversion

Polarity

Inversion

Noise filter2

Noise filter3

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