Datasheet

 2015 Microchip Technology Inc. Preliminary DS60001320B-page 303
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
16.0 WATCHDOG TIMER (WDT)
When enabled, the Watchdog Timer (WDT) operates
from the internal Low-Power Oscillator (LPRC) clock
source and can be used to detect system software mal
-
functions by resetting the device if the WDT is not
cleared periodically in software. Various WDT time-out
periods can be selected using the WDT postscaler. The
WDT can also be used to wake the device from Sleep
or Idle mode.
Key features of the WDT module include:
• Configuration or software controlled
• User-configurable time-out period
• Can wake the device from Sleep or Idle
FIGURE 16-1: WATCHDOG TIMER BLOCK DIAGRAM
Note: This data sheet summarizes the features
of the PIC32MZ EF family of devices. It is
not intended to be a comprehensive
reference source. To complement the
information in this data sheet, refer to Sec
-
tion 9. “Watchdog, Deadman, and
Power-up Timers” (DS60001114) in the
“PIC32 Family Reference Manual”, which
is available from the Microchip web site
(www.microchip.com/PIC32).
Wake
WDTCLRKEY<15:0> = 0x5743
ON
Power Save
32-bit Counter
WDT Counter Reset
32
WDT Event
RUNDIV<4:0> (WDTCON<12:8>)
Clock
Decoder
0
1
ON
Reset Event
to NMI
(1)
Note 1: Refer to 6.0 “Resets” for more information.
ON
LPRC