Microchip Technology AC244045 Data Sheet

Page of 448
PIC16(L)F1825/1829
DS41440C-page 98
 2010-2012 Microchip Technology Inc.
8.6.9
PIR4 REGISTER
(1)
The PIR4 register contains the interrupt flag bits, as
shown in 
.
             
TABLE 8-1:
SUMMARY OF REGISTERS ASSOCIATED WITH INTERRUPTS  
Note 1: The PIR4 register is available only on the
PIC16(L)F1829 device.
2: 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, of the
INTCON register. User software should
ensure the appropriate interrupt flag bits
are clear prior to enabling an interrupt.
REGISTER 8-9:
PIR4: PERIPHERAL INTERRUPT REQUEST REGISTER 4
(1)
U-0
U-0
U-0
U-0
U-0
U-0
R/W/HS-0/0 R/W/HS-0/0
BCL2IF
SSP2IF
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
HS = Bit is set by hardware
bit 7-6
Unimplemented: Read as ‘0’
bit 1
BCL2IF: MSSP2 Bus Collision Interrupt Flag bit
1 = A Bus Collision was detected (must be cleared in software)
0 = No Bus collision was detected
bit 0
SSP2IF: Master Synchronous Serial Port 2 (MSSP2) Interrupt Flag bit
1 = The Transmission/Reception/Bus Condition is complete (must be cleared in software)
0 = Waiting to Transmit/Receive/Bus Condition in progress
Note 1:
This register is only available on PIC16(L)F1829.
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register 
on Page
INTCON
GIE PEIE
TMR0IE
INTE
IOCIE
TMR0IF
INTF
IOCIF
OPTION_REG
WPUEN
INTEDG
TMR0CS
TMR0SE
PSA
PS<2:0>
PIE1
TMR1GIE
ADIE
RCIE
TXIE
SSP1IE
CCP1IE
TMR2IE
TMR1IE
PIE2
OSFIE
C2IE
C1IE
EEIE
BCL1IE
CCP2IE
PIE3
CCP4IE
CCP3IE
TMR6IE
TMR4IE
PIE4
(1)
BCL2IE
SSP2IE
PIR1
TMR1GIF
ADIF
RCIF
TXIF
SSP1IF
CCP1IF
TMR2IF
TMR1IF
PIR2
OSFIF
C2IF
C1IF
EEIF
BCL1IF
CCP2IF
PIR3
CCP4IF
CCP3IF
TMR6IF
TMR4IF
PIR4
(1)
BCL2IF
SSP2IF
Legend:
— Unimplemented locations read as ‘0’. Shaded cells are not used by interrupts.
Note 1:
PIC16(L)F1829 only.