Microchip Technology MA240017 Data Sheet

Page of 278
PIC24F16KA102 FAMILY
DS39927C-page 74
 2008-2011 Microchip Technology Inc.
REGISTER 8-8:
IFS4: INTERRUPT FLAG STATUS REGISTER 4
U-0
U-0
R/W-0, HS
U-0
U-0
U-0
U-0
R/W-0, HS
CTMUIF
HLVDIF
bit 15
bit 8
U-0
U-0
U-0
U-0
R/W-0, HS
R/W-0, HS
R/W-0, HS
U-0
CRCIF
U2ERIF
U1ERIF
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 15-14
Unimplemented:
 Read as ‘0’ 
bit 13
CTMUIF:
 CTMU Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 12-9
Unimplemented:
 Read as ‘0’ 
bit 8
HLVDIF:
 High/Low-Voltage Detect Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 7-4
Unimplemented:
 Read as ‘0’ 
bit 3
CRCIF:
 CRC Generator Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 2
U2ERIF:
 UART2 Error Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 1
U1ERIF:
 UART1 Error Interrupt Flag Status bit
1
 = Interrupt request has occurred
0
 = Interrupt request has not occurred
bit 0
Unimplemented:
 Read as ‘0’