Datasheet

PIC16C712/716
DS41106C-page 18  1999-2013 Microchip Technology Inc.
2.2.2.6 PCON Register
The Power Control (PCON) register contains a flag bit
to allow differentiation between a Power-on Reset
(POR) to an external MCLR
Reset or WDT Reset.
These devices contain an additional bit to differentiate
a Brown-out Reset condition from a Power-on Reset
condition.
FIGURE 2-9: PCON REGISTER (ADDRESS 8Eh)
Note: If the BODEN Configuration bit is set, BOR
is ‘1’ on Power-on Reset. If the BODEN
Configuration bit is clear, BOR
is unknown
on Power-on Reset.
The BOR Status bit is a “don’t care” and is
not necessarily predictable if the brown-out
circuit is disabled (the BODEN Configura-
tion bit is clear). BOR
must then be set by
the user and checked on subsequent
resets to see if it is clear, indicating a
brown-out has occurred.
U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-q
— — — — — — POR BOR R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
-n = Value at POR Reset
bit7 bit0
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)