PIC16F1946 Datasheet, PDF (77/440 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC16F/LF1946/47
6.0 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 6-1.
FIGURE 6-1:
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
 2010 Microchip Technology Inc.
Preliminary
DS41414A-page 75