PIC16C745 Datasheet

IC型号：
PIC16C745
PDF描述：
8-Bit CMOS Microcontrollers with USB
文件大小：
4945.69KB
PDF页数：
165页
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PIC16C745/765

4.2.2.8

PCON REGISTER

Note:

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.

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 鈥渄on't care鈥?and is not predictable if

the brown-out circuit is disabled (by clear-

ing the BODEN bit in the configuration

word).

U-0

鈥?/div>

bit7

POWER CONTROL REGISTER REGSTER (PCON: 8Eh)

U-0

鈥?/div>

U-0

鈥?/div>

U-0

鈥?/div>

U-0

鈥?/div>

R/W-0

POR

R/W-q

BOR

bit0

R = Readable bit

W = Writable bit

U = Unimplemented bit,

read as 鈥?鈥?/div>

-n = Value at POR reset

U-0

鈥?/div>

bit 7-2:

Unimplemented:

Read as 鈥?鈥?/div>

bit 1:

POR:

Power-on Reset Status bit

= No power-on reset occurred

= A power-on reset occurred (must be set in software after a power-on reset occurs)

BOR:

Brown-out Reset Status bit

= No brown-out reset occurred

= A brown-out reset occurred (must be set in software after a brown-out reset occurs)

bit 0:

DS41124A-page 28

Advanced Information

漏

1999 Microchip Technology Inc.

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