PIC18F45J10 FAMILY
REGISTER 5-1:
RCON: RESET CONTROL REGISTER
R/W-0
IPEN
U-0
—
R/W-1
CM
R/W-1
RI
R-1
TO
R-1
PD
R/W-0
POR
R/W-0
BOR(1)
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
bit 7
IPEN: Interrupt Priority Enable bit
1= Enable priority levels on interrupts
0= Disable priority levels on interrupts (PIC16CXXX Compatibility mode)
bit 6
bit 5
Unimplemented: Read as ‘0’
CM: Configuration Mismatch Flag bit
1= A Configuration Mismatch Reset has not occurred
0= A Configuration Mismatch Reset has occurred (must be set in software after a Configuration
Mismatch Reset occurs)
bit 4
RI: RESETInstruction Flag bit
1= The RESETinstruction was not executed (set by firmware only)
0= The RESET instruction was executed causing a device Reset (must be set in software after a
Brown-out Reset occurs)
bit 3
bit 2
bit 1
bit 0
TO: Watchdog Time-out Flag bit
1= Set by power-up, CLRWDTinstruction or SLEEPinstruction
0= A WDT time-out occurred
PD: Power-Down Detection Flag bit
1= Set by power-up or by the CLRWDTinstruction
0= Set by execution of the SLEEPinstruction
POR: Power-on Reset Status bit
1= A Power-on Reset has not occurred (set by firmware only)
0= A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
BOR: Brown-out Reset Status bit(1)
1= A Brown-out Reset has not occurred (set by firmware only)
0= A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs)
Note 1: BOR is not available on PIC18LF2XJ10/4XJ10 devices.
Note 1: It is recommended that the POR bit be set after a Power-on Reset has been detected, so that subsequent
Power-on Resets may be detected.
2: If the on-chip voltage regulator is disabled, BOR remains ‘0’ at all times. See Section 5.4.1 “Detecting
BOR” for more information.
3: Brown-out Reset is said to have occurred when BOR is ‘0’ and POR is ‘1’ (assuming that POR was set to
‘1’ by software immediately after a Power-on Reset).
DS39682E-page 42
© 2009 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
