PIC16C55A-04/P【PDF 186/194 页】IC MCU OTP 512X12 28DIP

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Sheet目录3875

182页 183页 184页 185页 [186页]187页 188页 189页 190页

PIC18F2450/4450

2006 Microchip Technology Inc.

Advance Information

DS39760A-page 89

REGISTER 8-3:

INTCON3: INTERRUPT CONTROL REGISTER 3

R/W-1

U-0

R/W-0

U-0

R/W-0

INT2IP

INT1IP

—

INT2IE

INT1IE

—

INT2IF

INT1IF

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7

INT2IP: INT2 External Interrupt Priority bit

= High priority

= Low priority

bit 6

INT1IP: INT1 External Interrupt Priority bit

= High priority

= Low priority

bit 5

Unimplemented: Read as ‘0’

bit 4

INT2IE: INT2 External Interrupt Enable bit

= Enables the INT2 external interrupt

= Disables the INT2 external interrupt

bit 3

INT1IE: INT1 External Interrupt Enable bit

= Enables the INT1 external interrupt

= Disables the INT1 external interrupt

bit 2

Unimplemented: Read as ‘0’

bit 1

INT2IF: INT2 External Interrupt Flag bit

= The INT2 external interrupt occurred (must be cleared in software)

= The INT2 external interrupt did not occur

bit 0

INT1IF: INT1 External Interrupt Flag bit

= The INT1 external interrupt occurred (must be cleared in software)

= The INT1 external interrupt did not occur

Note:

Interrupt flag bits are set when an interrupt condition occurs regardless of the state of its corresponding

enable bit or the global interrupt enable bit. User software should ensure the appropriate interrupt flag bits

are clear prior to enabling an interrupt. This feature allows for software polling.

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