PIC18F-LF1XK50 MICROCHIP [Microchip Technology], PIC18F-LF1XK50 Datasheet - Page 70

• Manufacturer Part Number: PIC18F-LF1XK50
• Description: 20-Pin USB Flash Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F/LF1XK50
7.4
The INTCON registers are readable and writable
registers, which contain various enable, priority and
flag bits.
REGISTER 7-1:
DS41350E-page 70
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Note 1:
GIE/GIEH
R/W-0
2:
INTCON Registers
A mismatch condition will continue to set the RABIF bit. Reading PORTA and PORTB will end the
mismatch condition and allow the bit to be cleared.
RA and RB port change interrupts also require the individual pin IOCA and IOCB enable.
GIE/GIEH: Global Interrupt Enable bit
When IPEN = 0:
1 = Enables all unmasked interrupts
0 = Disables all interrupts including peripherals
When IPEN = 1:
1 = Enables all high priority interrupts
0 = Disables all interrupts including low priority.
PEIE/GIEL: Peripheral Interrupt Enable bit
When IPEN = 0:
1 = Enables all unmasked peripheral interrupts
0 = Disables all peripheral interrupts
When IPEN = 1:
1 = Enables all low priority interrupts
0 = Disables all low priority interrupts
TMR0IE: TMR0 Overflow Interrupt Enable bit
1 = Enables the TMR0 overflow interrupt
0 = Disables the TMR0 overflow interrupt
INT0IE: INT0 External Interrupt Enable bit
1 = Enables the INT0 external interrupt
0 = Disables the INT0 external interrupt
RABIE: RA and RB Port Change Interrupt Enable bit
1 = Enables the RA and RB port change interrupt
0 = Disables the RA and RB port change interrupt
TMR0IF: TMR0 Overflow Interrupt Flag bit
1 = TMR0 register has overflowed (must be cleared by software)
0 = TMR0 register did not overflow
INT0IF: INT0 External Interrupt Flag bit
1 = The INT0 external interrupt occurred (must be cleared by software)
0 = The INT0 external interrupt did not occur
RABIF: RA and RB Port Change Interrupt Flag bit
1 = At least one of the RA <5:3> or RB<7:4> pins changed state (must be cleared by software)
0 = None of the RA<5:3> or RB<7:4> pins have changed state
PEIE/GIEL
R/W-0
INTCON: INTERRUPT CONTROL REGISTER
W = Writable bit
‘1’ = Bit is set
TMR0IE
R/W-0
INT0IE
R/W-0
Preliminary
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
(1)
RABIE
R/W-0
(2)
Note:
Interrupt flag bits are set when an interrupt
condition occurs, regardless of the state of
its corresponding enable bit or the global
enable bit. User software should ensure
the appropriate interrupt flag bits are clear
prior to enabling an interrupt. This feature
allows for software polling.
TMR0IF
R/W-0
 2010 Microchip Technology Inc.
x = Bit is unknown
INT0IF
R/W-0
RABIF
R/W-x
bit 0