PIC16C72AT-04E/SS 查看數據表（PDF） - Microchip Technology

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PIC16C72AT-04E/SS

28-Pin 8-Bit CMOS Microcontrollers

Microchip Technology 

PIC16C62B/72A

2.2.2.6 PCON REGISTER

The Power Control register (PCON) contains flag bits to

allow differentiation between a Power-on Reset (POR),

Brown-Out Reset (BOR) and resets from other

sources. .

Note:

On Power-on Reset, the state of the BOR

bit is unknown and is not predictable.

If the BODEN bit in the configuration word

is set, the user must first set the BOR bit on

a POR, and check it on subsequent resets.

If BOR is cleared while POR remains set,

a Brown-out reset has occurred.

If the BODEN bit is clear, the BOR bit may

be ignored.

REGISTER 2-6: PCON REGISTER (ADDRESS 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)

DS35008B-page 16

Preliminary

© 1999 Microchip Technology Inc.

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