PIC18F44J10-ESLASHML datasheet(40/358 Pages) MICROCHIP

40 / 358 page

PIC18F45J10 FAMILY

DS39682C-page 38

Preliminary

RCON: RESET CONTROL REGISTER

R/W-0

U-0

R/W-1

R-1

R/W-0

IPEN

—

—RI

POR

BOR

bit 7

bit 0

bit 7

IPEN: Interrupt Priority Enable bit

= Enable priority levels on interrupts

= Disable priority levels on interrupts (PIC16CXXX Compatibility mode)

bit 6-5

Unimplemented: Read as ‘0’

bit 4

RI: RESET Instruction Flag bit

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

= 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

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

= A WDT time-out occurred

bit 2

PD: Power-Down Detection Flag bit

= Set by power-up or by the CLRWDT instruction

= Set by execution of the SLEEP instruction

bit 1

POR: Power-on Reset Status bit

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

= A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)

bit 0

BOR: Brown-out Reset Status bit

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

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

Note:

BOR is not available in PIC18LF2XJ10/4XJ10 devices.

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

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 4.4.1 “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 POR).

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