PIC16C712 查看數據表（PDF） - Microchip Technology

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PIC16C712

8-Bit CMOS Microcontrollers with A/D Converter and Capture/Compare/PWM

Microchip Technology 

PIC16C712/716

2.2.2.6 PCON REGISTER

The Power Control (PCON) register contains a flag bit

to allow differentiation between a Power-on Reset

(POR) to an external MCLR Reset or WDT Reset.

These devices contain an additional bit to differentiate

a Brown-out Reset condition from a Power-on Reset

condition.

FIGURE 2-9: PCON REGISTER (ADDRESS 8Eh)

Note:

If the BODEN configuration bit is set, BOR

is ’1’ on Power-on Reset. If the BODEN

configuration bit is clear, BOR is unknown

on Power-on Reset.

The BOR status bit is a "don't care" and is

not necessarily predictable if the brown-out

circuit is disabled (the BODEN configura-

tion bit is clear). BOR must then be set by

the user and checked on subsequent

resets to see if it is clear, indicating a

brown-out has occurred.

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)

DS41106A-page 18

Preliminary

© 1999 Microchip Technology Inc.

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