PIC16LF1904 Datasheet, PDF (49/288 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

5.0 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.
PIC16LF1904/6/7
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
LPBOR
Reset
BOR
Enable
Zero
LFINTOSC
PWRT
72 ms
PWRTEN
Device
Reset
 2011 Microchip Technology Inc.
Preliminary
DS41569A-page 49