
2007 Microchip Technology Inc.
DS21993C-page 25
PIC16CR7X
2.2.2.8
PCON Register
The Power Control (PCON) register contains flag bits
to allow differentiation between a Power-on Reset
(POR), a Brown-out Reset (BOR), a Watchdog Reset
(WDT) and an external MCLR Reset.
Note:
BOR is unknown on POR. It must be set by
the user and checked on subsequent
Resets to see if BOR is clear, indicating a
brown-out has occurred. The BOR Status
bit is not predictable if the brown-out circuit
is disabled (by clearing the BOREN bit in
the Configuration Word).
REGISTER 2-8:
PCON: (ADDRESS 8Eh)
U-0
R/W-0
R/W-1
—
POR
BOR
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 7-2
Unimplemented: Read as ‘0’
bit 1
POR: Power-on Reset Status bit
1
= No Power-on Reset occurred
0
= A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
bit 0
BOR: Brown-out Reset Status bit
1
= No Brown-out Reset occurred
0
= A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs)