PIC16C745/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16C745/SP

8-Bit CMOS Microcontrollers with USB

Microchip Technology 

PIC16C745/765

4.2.2.8 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 Watch-dog 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 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).

REGISTER 4-8: POWER CONTROL REGISTER REGSTER (PCON: 8Eh)

U-0

U-0

U-0

U-0

U-0

—

—

—

—

—

bit7

bit 7-2: Unimplemented: Read as ’0’

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

—

POR

BOR

R = Readable bit

bit0

W = Writable bit

U = Unimplemented bit,

read as ‘0’

-n = Value at POR reset

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.

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