參數(shù)資料
型號: 16F871
廠商: Microchip Technology Inc.
英文描述: CAT 5E CROSSOVER PATCH CORD CABLE GREEN 6 FT
中文描述: 28/40-Pin 8位CMOS閃存微控制器
文件頁數(shù): 23/156頁
文件大小: 2816K
代理商: 16F871
1999 Microchip Technology Inc.
Preliminary
DS30569A-page 23
PIC16F870/871
2.2.2.8
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.
REGISTER 2-8:
PCON REGISTER (ADDRESS 8Eh)
Note:
BOR is unknown on POR. It must be set by
the user and checked on subsequent rests
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 clearing
the BODEN bit in the configuration word).
U-0
U-0
U-0
U-0
U-0
U-0
R/W-0
POR
R/W-1
BOR
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n= Value at POR reset
bit7
bit 7-2:
bit 1:
Unimplemented:
Read as '0'
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)
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)
bit 0:
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