PIC16C620 Microchip Technology, PIC16C620 Datasheet - Page 22

• Manufacturer Part Number: PIC16C620
• Description: EPROM-Based 8-Bit CMOS Microcontroller
• Manufacturer: Microchip Technology

PIC16C62X
4.2.2.6
The PCON register contains flag bits to differentiate
between a Power-on Reset, an external MCLR reset,
WDT reset or a Brown-out Reset.
FIGURE 4-13: PCON REGISTER (ADDRESS 8Eh)
DS30235G-page 22
Note: BOR is unknown on Power-on Reset. It
bit7
bit 7-2: Unimplemented: Read as '0'
bit 1:
bit 0:
U-0
—
must then be set by the user and checked
on subsequent resets to see if BOR is
cleared,
occurred. The BOR status bit is a "don't
care" and is not necessarily predictable if
the brown-out circuit is disabled (by
programming
Configuration word).
PCON REGISTER
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)
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)
U-0
—
indicating
U-0
—
BOREN
a
U-0
—
brown-out
bit
in
U-0
—
has
the
Preliminary
U-0
—
R/W-0
POR
R/W-0
BOR
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
1998 Microchip Technology Inc.
read as ‘0’