Provision ISR PTG-01 Spezifikationen PDF herunterladen (Seite 27)

 2002 Microchip Technology Inc. DS30325B-page 25

PIC16F7X

2.2.2.8 PCON Register

The Power Control (PCON) register contains flag bits

to allow differentiation between a Power-on Reset

(POR), a Brown-out Reset (BOR), a Watchdog Reset

(WDT) and an external MCLR

Reset.

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 not 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 U-0 U-0 R/W-0 R/W-1

— — — — — — POR BOR

bit 7 bit 0

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)

Legend:

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

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

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 173 174

Keine Kommentare

Provision ISR PTG-01 Spezifikationen Seite 27