PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 104

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F4321 FAMILY
9.5
The RCON register contains flag bits which are used to
determine the cause of the last Reset or wake-up from
Idle or Sleep modes. RCON also contains the IPEN bit
which enables interrupt priorities.
REGISTER 9-10:
DS39689E-page 102
RCON Register
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
RCON: RESET CONTROL REGISTER
bit 7
IPEN: Interrupt Priority Enable bit
1 = Enable priority levels on interrupts
0 = Disable priority levels on interrupts (PIC16XXX Compatibility mode)
SBOREN: Software BOR Enable bit
For details of bit operation, see Register 4-1.
Unimplemented: Read as ‘0’
RI: RESET Instruction Flag bit
For details of bit operation, see Register 4-1.
TO: Watchdog Time-out Flag bit
For details of bit operation, see Register 4-1.
PD: Power-down Detection Flag bit
For details of bit operation, see Register 4-1.
POR: Power-on Reset Status bit
For details of bit operation, see Register 4-1.
BOR: Brown-out Reset Status bit
For details of bit operation, see Register 4-1.
Legend:
R = Readable bit
-n = Value at POR
R/W-0
IPEN
Note 1: If SBOREN is enabled, its Reset state is ‘1’; otherwise, it is ‘0’.
2: Actual Reset values are determined by device configuration and the nature of the
device Reset. See Register 4-1 for additional information.
SBOREN
R/W-1
(1)
W = Writable bit
‘1’ = Bit is set
Preliminary
U-0
—
(2)
(1)
R/W-1
The operation of the SBOREN bit and the Reset flag
bits is discussed in more detail in Section 4.1 “RCON
Register”.
RI
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R-1
TO
R-1
PD
© 2007 Microchip Technology Inc.
R/W-0
POR
x = Bit is unknown
(2)
R/W-0
BOR
bit 0