PIC16LF1454 Datasheet, PDF (79/418 Pages) Microchip Technology – 14/20-Pin Flash, 8-Bit USB Microcontrollers with XLP Technology

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
ICSP™ Programming Mode Exit
RESET Instruction
Stack
Pointer
MCLR
VDD
MCLRE
Sleep
WDT
Time-out
Power-on
Reset
Brown-out
Reset
LPBOR
Reset
BOR
Active⁽¹⁾
LFINTOSC
Note 1: See Table 6-1 for BOR active conditions.
R PWRT
Done
PWRTE
Device
Reset
 2012 Microchip Technology Inc.
Preliminary
DS41639A-page 79