PIC16F872
2.2.2.8
PCON REGISTER
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 a don’t care and is not predictable if
the brown-out circuit is disabled (by clear-
ing the BODEN bit in the configuration
word).
The Power Control (PCON) Register contains flag bits
to allow differentiation between a Power-on Reset
(POR), a Brown-out Reset (BOR), a Watch-dog Reset
(WDT) and an external MCLR Reset.
REGISTER 2-8: PCON REGISTER (ADDRESS 8Eh)
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
R/W-0
POR
R/W-1
BOR
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
bit7
bit0
- n= Value at POR reset
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)
1999 Microchip Technology Inc.
Preliminary
DS30221A-page 19
MICROCHIP [ MICROCHIP ]
