PIC16LF1902-ESS View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LF1902-ESS

28-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

Microchip Technology 

5.0 RESETS

There are multiple ways to reset this device:

• Power-on Reset (POR)

• Brown-out Reset (BOR)

• Ultra Low-Power Brown-out Reset (ULPBOR)

• 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.

PIC16LF1902/3

A simplified block diagram of the On-Chip Reset Circuit

is shown in Figure 5-1.

FIGURE 5-1:

SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT

Programming Mode Exit

RESET Instruction

Stack Stack Overflow/Underflow Reset

Pointer

MCLR

External Reset

MCLRE

Sleep

WDT

Time-out

Power-on

Reset

VDD

Brown-out

Reset

ULPBOR

Reset

BOR

Enable

Zero

LFINTOSC

PWRT

64 ms

PWRTEN

Device

Reset

 2011 Microchip Technology Inc.

Preliminary

DS41455A-page 43

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