PIC18F6620 Microchip, PIC18F6620 Datasheet - Page 62
PIC18F6620
Manufacturer Part Number
PIC18F6620
Description
Microcontroller
Manufacturer
Microchip
Datasheet
1.PIC18F6620.pdf
(380 pages)
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PIC18F6520/8520/6620/8620/6720/8720
4.14
The Reset Control (RCON) register contains flag bits
that allow differentiation between the sources of a
device Reset. These flags include the TO, PD, POR,
BOR and RI bits. This register is readable and writable.
REGISTER 4-4:
DS39609B-page 60
RCON Register
bit 7
bit 6-5
bit 4
bit 3
bit 2
bit 1
bit 0
RCON REGISTER
bit 7
IPEN: Interrupt Priority Enable bit
1 = Enable priority levels on interrupts
0 = Disable priority levels on interrupts (PIC16CXXX Compatibility mode)
Unimplemented: Read as ‘0’
RI: RESET Instruction Flag bit
1 = The RESET instruction was not executed
0 = The RESET instruction was executed causing a device Reset
TO: Watchdog Time-out Flag bit
1 = After power-up, CLRWDT instruction, or SLEEP instruction
0 = A WDT time-out occurred
PD: Power-down Detection Flag bit
1 = After power-up or by the CLRWDT instruction
0 = By execution of the SLEEP instruction
POR: Power-on Reset Status bit
1 = A Power-on Reset has not 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 = A Brown-out Reset has not 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
R/W-0
IPEN
(must be set in software after a Brown-out Reset occurs)
U-0
—
U-0
W = Writable bit
‘1’ = Bit is set
—
R/W-1
RI
Note 1: If the BOREN configuration bit is set
2: It is recommended that the POR bit be set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
(Brown-out Reset enabled), the BOR bit
is ‘1’ on a Power-on Reset. After a Brown-
out Reset has occurred, the BOR bit will
be cleared and must be set by firmware to
indicate the occurrence of the next
Brown-out Reset.
after a Power-on Reset has been
detected, so that subsequent Power-on
Resets may be detected.
TO
R/W-1
2004 Microchip Technology Inc.
PD
x = Bit is unknown
R/W-0
POR
R/W-0
BOR
bit 0
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