PIC16LC774-04SLASHSP datasheet(23/200 Pages) MICROCHIP

23 / 200 page

PIC16C77X

Advance Information

DS30275A-page 23

2.2.2.8

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.

Those devices with brown-out detection circuitry con-

tain an additional bit to differentiate a Brown-out Reset

condition from a Power-on Reset condition.

FIGURE 2-10: PCON REGISTER (ADDRESS 8Eh)

Note:

BOR is unknown on Power-on Reset. It

must then 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 necessarily predictable if the brown-out

circuit is disabled (by clearing the BODEN

bit in the Configuration word).

U-0

R/W-0

R/W-1

—

—POR

BOR

= Readable bit

W = Writable bit

= Unimplemented bit,

read as ‘0’

- n = Value at POR reset

bit7

bit0

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)

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