Datasheet

 2015 Microchip Technology Inc. Preliminary DS60001320B-page 705
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
B.6 Resets
On PIC32MZ EF devices, the Reset module adds eight
bits to the NMICNT field to make the time-out period
before device Reset longer, as described in
Table B-5.
TABLE B-5: RESETS DIFFERENCES
B.7 USB
On PIC32MZ EF devices, a new USBCRCON register
has been added to assist in controlling the reset of the
USB module, and triggering interrupts based on VBUS
voltage levels. This register also overcomes an errata
on PIC32MZ EC devices that requires a three second
start-up on the USB module.
B.8 I/O Ports
On PIC32MZ EF devices, many of the I/O pins now
feature slew rate control bits to control how fast the pin
makes a low-to-high or high-to-low transition. The
Change Notification feature has also been enhanced to
allow detection of level events in addition to edge
detection.
B.9 Watchdog Timer
PIC32MZ EF devices use a new Watchdog Timer,
although the overall control through the DEVCFGx
words remains identical to that of PIC32MZ EC
devices.
Table B-6 lists two more changes, as well.
TABLE B-6: WATCHDOG TIMER DIFFERENCES
PIC32MZ EC Feature PIC32MZ EF Feature
Countdown to Reset During NMIs
On PIC32MZ EC devices, the NMICNT<7:0> field is eight bits
long, giving a maximum of 256 instructions before the device
Reset.
On PIC32MZ EF devices, the NMICNT<15:0> field is now 16 bits
long, giving a longer period of time (up to 65,536 instructions)
prior to a device Reset.
PIC32MZ EC Feature PIC32MZ EF Feature
Watchdog Timer Postscaler
On PIC32MZ EC devices, the SWDTPS<4:0> bits
(WDTCON<6:2>) reflect the postscaler setting for the Watchdog
Timer.
On PIC32MZ EF devices, the field has been changed to the
RUNDIV<4:0> bits (WDTCON<12:8>).
Watchdog Windowed Mode
On PIC32MZ EC devices, WDTWINEN is at bit position 1
(WDTCON<1>).
On PIC32MZ EF devices, WDTWINEN is now at bit position 0
(WDTCON<0>).