PIC16C745/765
4.2.2.8
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 4-8: POWER CONTROL REGISTER REGSTER (PCON: 8Eh)
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
U-0
—
R/W-0
POR
R/W-q
BOR
R
W
U
=
=
=
Readable bit
Writable bit
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)
DS41124A-page 28
Advanced Information
1999 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
