SFR explanation for PIC16F873(4)

INTCON ( Interruption Control register ) 0Bh,8Bh,10Bh,18Bh

By this register, various interruptin conditions are controlled.

The value in the parenthesis is in the condition immediately after the turning on.

GIE : Global Interrupt Enable bit

	1	:	Enables all un-masked interrupts
	0	:	Disables all interrupts

PEIE : Peripheral Interrupt Enable bit ( This bit should be set when using the CCP interruption so on )

	1	:	Enables all un-masked peripheral interrupts
	0	:	Disables all peripheral interrupts

T0IE : TMR0 Overflow Interrupt Enable bit

	1	:	Enables the TMR0 interrupt
	0	:	Disables the TMR0 interrupt

INTE : RB0/INT Interrupt Enable bit

	1	:	Enables the RB0/INT interrupt
	0	:	Disables the RB0/INT interrupt

RBIE : RB Port Change Interrupt Enable bit

	1	:	Enables the RB port change interrupt
	0	:	Disables the RB port change interrupt

T0IF : TMR0 Overflow Interrupt Flag bit

	1	:	TMR0 has overflow ( must be cleared in software )
	0	:	TMR0 did not overflow

INTF : RB0/INT Interrupt Flag bit

	1	:	The RB0/INT interrupt occurred ( must be cleared in software )
	0	:	The RB0/INT interrupt did not occurred

RBIF : RB Port Change Interrupt Flag bit

	1	:	When at least one of the RB7:RB4 pins changed state ( must be cleared in software )
	0	:	None of the RB7:RB4 pins have changed state