PIC18F44J10T-I/ML(2009) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F44J10T-I/ML
(Rev.:2009)

28/40/44-Pin High-Performance, RISC Microcontrollers

Microchip Technology 

PIC18F45J10 FAMILY

REGISTER 5-1: RCON: RESET CONTROL REGISTER

R/W-0

IPEN

bit 7

U-0

R/W-1

R/W-1

R-1

—

CM

RI

TO

R-1

R/W-0

R/W-0

PD

POR

BOR(1)

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 7

IPEN: Interrupt Priority Enable bit

1 = Enable priority levels on interrupts

0 = Disable priority levels on interrupts (PIC16CXXX Compatibility mode)

bit 6

Unimplemented: Read as ‘0’

bit 5

CM: Configuration Mismatch Flag bit

1 = A Configuration Mismatch Reset has not occurred

0 = A Configuration Mismatch Reset has occurred (must be set in software after a Configuration

Mismatch Reset occurs)

bit 4

RI: RESET Instruction Flag bit

1 = The RESET instruction was not executed (set by firmware only)

0 = The RESET instruction was executed causing a device Reset (must be set in software after a

Brown-out Reset occurs)

bit 3

TO: Watchdog Time-out Flag bit

1 = Set by power-up, CLRWDT instruction or SLEEP instruction

0 = A WDT time-out occurred

bit 2

PD: Power-Down Detection Flag bit

1 = Set by power-up or by the CLRWDT instruction

0 = Set by execution of the SLEEP instruction

bit 1

POR: Power-on Reset Status bit

1 = A Power-on Reset has not occurred (set by firmware only)

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)

1 = A Brown-out Reset has not occurred (set by firmware only)

0 = A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs)

Note 1: BOR is not available on PIC18LF2XJ10/4XJ10 devices.

Note 1: It is recommended that the POR bit be set after a Power-on Reset has been detected, so that subsequent

Power-on Resets may be detected.

2: If the on-chip voltage regulator is disabled, BOR remains ‘0’ at all times. See Section 5.4.1 “Detecting

BOR” for more information.

3: Brown-out Reset is said to have occurred when BOR is ‘0’ and POR is ‘1’ (assuming that POR was set to

‘1’ by software immediately after a Power-on Reset).

DS39682E-page 42

© 2009 Microchip Technology Inc.

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