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
• RESETinstruction
• 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 Overflow/Underflow Reset
Stack
Pointer
External Reset
MCLRE
MCLR
Sleep
WDT
Time-out
Device
Reset
Power-on
Reset
VDD
Brown-out
Reset
BOR
Enable
PWRT
64 ms
Zero
LFINTOSC
PWRTEN
2010 Microchip Technology Inc.
Preliminary
DS41414A-page 75
MICROCHIP [ MICROCHIP ]
