PIC16C765 Microchip Technology Inc., PIC16C765 Datasheet - Page 26
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PIC16C765
Manufacturer Part Number
PIC16C765
Description
8-bit Cmos Microcontrollers With Usb
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16C765.pdf
(165 pages)
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PIC16C745/765
4.2.2.5
This register contains the individual flag bits for the
peripheral interrupts.
REGISTER 4-5: PERIPHERAL INTERRUPT REGISTER1 (PIR1: 0Ch)
DS41124C-page 26
bit7
PSPIF
bit 7:
bit 6:
bit 5:
bit 4:
bit 3:
bit 2:
bit 1:
bit 0:
Note 1: Parallel slave ports not implemented on the PIC16C745; always maintain this bit clear.
R/W-0
(1)
PIR1 REGISTER
PSPIF
1 = A read or a write operation has taken place (must be cleared in software)
0 = No read or write has occurred
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
RCIF: USART Receive Interrupt Flag bit
1 = The USART receive buffer is full (clear by reading RCREG)
0 = The USART receive buffer is empty
TXIF: USART Transmit Interrupt Flag bit
1 = The USART transmit buffer is empty (clear by writing to TXREG)
0 = The USART transmit buffer is full
USBIF: Universal Serial Bus (USB) Interrupt Flag
1 = A USB interrupt condition has occurred. The specific cause can be found by examining the contents
of the UIR and UIE registers.
0 = No USB interrupt conditions that are enabled have occurred.
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
ADIF
(1)
: Parallel Slave Port Read/Write Interrupt Flag bit
RCIF
R-0
TXIF
R-0
USBIF
R/W-0
Preliminary
CCP1IF
R/W-0
TMR2IF TMR1IF
R/W-0
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, GIE (INTCON<7>). User soft-
ware should ensure the appropriate inter-
rupt flag bits are clear prior to enabling an
interrupt.
R/W-0
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
-n = Value at POR reset
2000 Microchip Technology Inc.
read as ‘0’