參數(shù)資料
型號: PIC16F77
廠商: Microchip Technology Inc.
英文描述: 40-Pin 8-Bit CMOS FLASH Microcontrollers(40腳、8位CMOS 閃速微控制器)
中文描述: 40引腳8位CMOS閃存微控制器(40腳,8位的CMOS閃速微控制器)
文件頁數(shù): 25/170頁
文件大小: 3150K
代理商: PIC16F77
2000 Microchip Technology Inc.
Advance Information
DS30325A-page 25
PIC16F7X
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 Watchdog 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
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 predictable if
the brown-out circuit is disabled (by clear-
ing 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
bit 7
bit 0
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
Legend:
R = Readable bit
- n = Value at POR reset
W = Writable bit
1
= Bit is set
U = Unimplemented bit, read as
0
0
= Bit is cleared
x = Bit is unknown
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