Datasheet

PIC16F62X

DS40300C-page 24 Preliminary  2003 Microchip Technology Inc.

3.2.2.6 PCON Register

The PCON register contains flag bits to differentiate

between a Power-on Reset, an external MCLR

Reset,

WDT Reset or a Brown-out Detect.

Note: BOD is unknown on Power-on Reset. It

must then be set by the user and checked

on subsequent RESETS to see if BOD

cleared, indicating a brown-out has

occurred. The BOD

STATUS bit is a “don't

care” and is not necessarily predictable if

the brown-out circuit is disabled (by

clearing the BODEN bit in the

Configuration word).

U-0 U-0 U-0 U-0 R/W-1 U-0 R/W-q R/W-q

— — — — OSCF —PORBOD

bit 7 bit 0

bit 7-4 Unimplemented: Read as '0'

bit 3 OSCF: INTRC/ER oscillator frequency

1 = 4 MHz typical

(1)

0 = 37 KHz typical

bit 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 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)

Note 1: When in ER Oscillator mode, setting OSCF = 1 will cause the oscillator frequency to

change to the frequency specified by the external resistor.

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ’1’ = Bit is set ’0’ = Bit is cleared x = Bit is unknown