PIC16F627-04 Microchip Technology, PIC16F627-04 Datasheet - Page 24

• Manufacturer Part Number: PIC16F627-04
• Description: FLASH-Based 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC16F62X
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 Detect.
REGISTER 4-6: PCON REGISTER (ADDRESS 8Eh)
DS40300B-page 24
Note 1: When in ER oscillator mode, setting OSCF = 1 will cause the oscillator speed to change to the speed
Note: BOD is unknown on Power-on Reset. It
U-0
—
bit7
bit 7-4,2: Unimplemented: Read as '0'
bit 3:
bit 1:
bit 0:
must then be set by the user and checked
on subsequent resets to see if BOD is
cleared,
occurred. The BOD status bit is a "don’t
care" and is not necessarily predictable if
the brown-out circuit is disabled (by
programming
Configuration word).
specified by the external resistor.
PCON REGISTER
OSCF: INTRC/ER oscillator speed
1 = 4 MHz typical
0 = 37 KHz typical
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)
BOD: Brown-out Detect 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
(1)
a
U-0
—
brown-out
bit
R/W-1
OSCF
in
has
the
Preliminary
U-0
—
R/W-q
POR
R/W-q
BOD
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit, read
-n = Value at POR reset
1999 Microchip Technology Inc.
as ’0’