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dsPIC33F
DS70165E-page 84
Preliminary
2007 Microchip Technology Inc.
REGISTER 5-1:
RCON: RESET CONTROL REGISTER(1)
R/W-0
U-0
R/W-0
TRAPR
IOPUWR
—
—VREGS
bit 15
bit 8
R/W-0
R/W-1
EXTR
SWR
SWDTEN(2)
WDTO
SLEEP
IDLE
BOR
POR
bit 7
bit 0
Legend:
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
TRAPR: Trap Reset Flag bit
1
= A Trap Conflict Reset has occurred
0
= A Trap Conflict Reset has not occurred
bit 14
IOPUWR: Illegal Opcode or Uninitialized W Access Reset Flag bit
1
= An illegal opcode detection, an illegal address mode or uninitialized W register used as an
Address Pointer caused a Reset
0
= An illegal opcode or uninitialized W Reset has not occurred
bit 13-9
Unimplemented: Read as ‘0’
bit 8
VREGS: Voltage Regulator Standby During Sleep bit
1
= Voltage regulator goes into Standby mode during Sleep
0
= Voltage regulator is active during Sleep
bit 7
EXTR: External Reset (MCLR) Pin bit
1
= A Master Clear (pin) Reset has occurred
0
= A Master Clear (pin) Reset has not occurred
bit 6
SWR: Software Reset (Instruction) Flag bit
1
= A RESET instruction has been executed
0
= A RESET instruction has not been executed
bit 5
SWDTEN: Software Enable/Disable of WDT bit(2)
1
= WDT is enabled
0
= WDT is disabled
bit 4
WDTO: Watchdog Timer Time-out Flag bit
1
= WDT time-out has occurred
0
= WDT time-out has not occurred
bit 3
SLEEP: Wake-up from Sleep Flag bit
1
= Device has been in Sleep mode
0
= Device has not been in Sleep mode
bit 2
IDLE: Wake-up from Idle Flag bit
1
= Device was in Idle mode
0
= Device was not in Idle mode
bit 1
BOR: Brown-out Reset Flag bit
1
= A Brown-out Reset has occurred
0
= A Brown-out Reset has not occurred
Note 1:
All of the Reset status bits may be set or cleared in software. Setting one of these bits in software does not
cause a device Reset.
2:
If the FWDTEN Configuration bit is ‘1’ (unprogrammed), the WDT is always enabled, regardless of the
SWDTEN bit setting.
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