Microchip Technology AC244045 Data Sheet

 2010-2012 Microchip Technology Inc.

DS41440C-page 77

There are multiple ways to reset this device:
• Power-on Reset (POR)
• Brown-out Reset (BOR)
• MCLR Reset
• WDT  Reset
• RESET instruction
• Stack Overflow
• Stack Underflow
• Programming mode exit
To allow V

DD

 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 

External Reset

MCLR

V

DD

WDT

Time-out

Power-on

Reset

LFINTOSC

 

PWRT

64 ms

PWRTEN

Brown-out

Reset

BOR

RESET Instruction

Stack

Pointer

Stack Overflow/Underflow Reset

Sleep

MCLRE

Enable

Device
Reset

Zero

Programming Mode Exit