Microchip Technology MA240017 Data Sheet

Page of 278
PIC24F16KA102 FAMILY
DS39927C-page 72
 2008-2011 Microchip Technology Inc.
REGISTER 8-6:
IFS1: INTERRUPT FLAG STATUS REGISTER 1
R/W-0, HS
R/W-0, HS
R/W-0, HS
U-0
U-0
U-0
U-0
U-0
U2TXIF
U2RXIF
INT2IF
bit 15
bit 8
U-0
U-0
U-0
R/W-0, HS
R/W-0, HS
R/W-0, HS
R/W-0
R/W-0
INT1IF
CNIF
CMIF
MI2C1IF
SI2C1IF
bit 7
bit 0
Legend:
HS = Hardware Settable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
U2TXIF:
 UART2 Transmitter Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 14
U2RXIF:
 UART2 Receiver Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 13
INT2IF:
 External Interrupt 2 Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 12-5
Unimplemented:
 Read as ‘0’ 
bit 4
INT1IF:
 External Interrupt 1 Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 3
CNIF:
 Input Change Notification Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 2
CMIF:
 Comparator Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 1
MI2C1IF: 
Master I2C1 Event Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 0
SI2C1IF: 
Slave I2C1 Event Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred