Datasheet

 2012 Microchip Technology Inc. Preliminary DS41639A-page 79

PIC16(L)F1454/5/9

6.0 RESETS

There are multiple ways to reset this device:

• Power-on Reset (POR)

• Brown-out Reset (BOR)

• Low-Power Brown-out Reset (LPBOR)

•MCLR Reset

•WDT Reset

• RESET instruction

• Stack Overflow

• Stack Underflow

• Programming mode exit

To allow VDD to stabilize, an optional Power-up Timer

can be enabled to extend the Reset time after a BOR

or POR event.

A simplified block diagram of the on-chip Reset circuit

is shown in Figure 6-1.

FIGURE 6-1: SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT

Note 1: See Table 6-1 for BOR active conditions.

Device

Reset

Power-on

Reset

WDT

Time-out

Brown-out

Reset

LPBOR

Reset

RESET Instruction

MCLRE

Sleep

BOR

Active

(1)

PWRT

Done

PWRTE

LFINTOSC

VDD

ICSP™ Programming Mode Exit

Stack

Pointer

MCLR