PIC16F1847_13 Datasheet, PDF (73/440 Pages) Microchip Technology – 18/20/28-Pin Flash Microcontrollers with XLP Technology

PIC16(L)F1847
7.0 RESETS
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 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 7-1.
FIGURE 7-1:
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
BOR
Enable
Zero
LFINTOSC
PWRT
64 ms
PWRTEN
Device
Reset
 2011-2013 Microchip Technology Inc.
Preliminary
DS40001453D-page 73