參數(shù)資料
型號: PIC16LC620A-20/P
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDIP18
封裝: 0.300 INCH, PLASTIC, DIP-18
文件頁數(shù): 24/108頁
文件大小: 674K
代理商: PIC16LC620A-20/P
PIC16C62X
DS30235G-page 22
Preliminary
1998 Microchip Technology Inc.
4.2.2.6
PCON REGISTER
The PCON register contains ag bits to differentiate
between a Power-on Reset, an external MCLR reset,
WDT reset or a Brown-out Reset.
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
cleared,
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
programming
BOREN
bit
in
the
Conguration word).
FIGURE 4-13: PCON REGISTER (ADDRESS 8Eh)
U-0
R/W-0
POR
BOR
R
= Readable bit
W = Writable bit
U
= 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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