PIC18LF4480ESOSQTP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF4480ESOSQTP

28/40/44-Pin Enhanced Flash Microcontrollers with ECAN™ Technology, 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2480/2580/4480/4580

REGISTER 5-1: RCON: RESET CONTROL REGISTER

R/W-0

R/W-1(1)

U-0

R/W-1

R-1

IPEN

SBOREN

—

RI

TO

bit 7

R-1

R/W-0(2)

R/W-0

PD

POR

BOR

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

SBOREN: BOR Software Enable bit(1)

If BOREN<1:0> = 01:

1 = BOR is enabled

0 = BOR is disabled

If BOREN<1:0> = 00, 10 or 11:

Bit is disabled and reads as ‘0’.

bit 5

Unimplemented: Read as ‘0’

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(2)

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 = 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: If SBOREN is enabled, its Reset state is ‘1’; otherwise, it is ‘0’.

2: The actual Reset value of POR is determined by the type of device Reset. See the notes following this

register and Section 5.6 “Reset State of Registers” for additional information.

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: 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).

DS39637D-page 48

© 2009 Microchip Technology Inc.

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