PIC16C926-I/CL Microchip Technology, PIC16C926-I/CL Datasheet - Page 25

• Manufacturer Part Number: PIC16C926-I/CL
• Description: 64/68-Pin CMOS Microcontrollers with LCD Driver
• Manufacturer: Microchip Technology

2.3.5
This register contains the individual flag bits for the
peripheral interrupts.
REGISTER 2-5:
2001 Microchip Technology Inc.
PIR1 REGISTER
bit 7
bit 6
bit 5-4
bit 3
bit 2
bit 1
bit 0
Legend:
R = Readable bit
- n = Value at POR reset
PIR1 REGISTER (ADDRESS 0Ch)
bit 7
LCDIF: LCD Interrupt Flag bit
1 = LCD interrupt has occurred (must be cleared in software)
0 = LCD interrupt did not occur
ADIF: A/D Converter Interrupt Flag bit
1 = An A/D conversion completed (must be cleared in software)
0 = The A/D conversion is not complete
Unimplemented: Read as ‘0’
SSPIF: Master Synchronous Serial Port Interrupt Flag bit
1 = The transmission/reception is complete (must be cleared in software)
0 = Waiting to transmit/receive
CCP1IF: CCP1 Interrupt Flag bit
Capture mode:
1 = A TMR1 register capture occurred (must be cleared in software)
0 = No TMR1 register capture occurred
Compare mode:
1 = A TMR1 register compare match occurred (must be cleared in software)
0 = No TMR1 register compare match occurred
PWM mode:
Unused in this mode
TMR2IF: TMR2 to PR2 Match Interrupt Flag bit
1 = TMR2 to PR2 match occurred (must be cleared in software)
0 = No TMR2 to PR2 match occurred
TMR1IF: TMR1 Overflow Interrupt Flag bit
1 = TMR1 register overflowed (must be cleared in software)
0 = TMR1 register did not overflow
R/W-0
LCDIF
R/W-0
ADIF
W = Writable bit
’1’ = Bit is set
Preliminary
U-0
—
U-0
—
Note:
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
Interrupt flag bits are set when an interrupt
condition occurs, regardless of the state of
its corresponding enable bit or the global
enable bit, GIE (INTCON<7>). User soft-
ware should ensure the appropriate inter-
rupt flag bits are clear prior to enabling an
interrupt.
SSPIF
R/W-0
PIC16C925/926
CCP1IF
R/W-0
x = Bit is unknown
TMR2IF
R/W-0
DS39544A-page 23
TMR1IF
R/W-0
bit 0