PIC16C621A Microchip Technology Inc., PIC16C621A Datasheet - Page 24
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PIC16C621A
Manufacturer Part Number
PIC16C621A
Description
Eprom-based 8-bit Cmos Microcontrollers
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16C621A.pdf
(128 pages)
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PIC16C62X
4.2.2.6
The PCON register contains flag bits to differentiate
between a Power-on Reset, an external MCLR Reset,
WDT Reset or a Brown-out Reset.
REGISTER 4-6:
DS30235J-page 22
Note:
bit 7-2
bit 1
bit 0
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,
occurred. The BOR STATUS bit is a "don't
care" and is not necessarily predictable if
the brown-out circuit is disabled (by
programming
Configuration word).
PCON Register
indicating
PCON REGISTER (ADDRESS 8Eh)
bit 7
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)
Legend:
R = Readable bit
- n = Value at POR
U-0
—
BODEN
a
brown-out
U-0
—
bit
in
has
the
U-0
—
W = Writable bit
’1’ = Bit is set
U-0
—
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
U-0
—
U-0
—
2003 Microchip Technology Inc.
x = Bit is unknown
R/W-0
POR
R/W-0
BOR
bit 0