1.35.10 Reset Controller (RSTC)

The Reset Controller (RSTC) handles all the resets of the system and generates following reset signals:

The following are the sources of reset:

General Reset: A general reset occurs when a VDDIO poweronreset is detected, a brownout or a voltage regulation loss is detected by the Supply Controller.
Backup Reset: A backup reset occurs when the chip exits from Backup mode.
Watchdog Reset: The watchdog reset occurs when it times out
Software Reset: The RSTC offers commands to assert processor reset and external reset
User Reset: A user reset is generated when a low level is detected on the NRST pin

Using The Library

The RSTC Peripheral library provides API's for the following:

To generate a software reset to reset the processor and all the embedded peripherals including the memory.
To find the cause of last device reset
Poll the NRST pin status or register interrupt callback when it is used as GPIO

Reset Controller peripheral library provides the following interfaces:

Functions


Name	Description
RSTC_Initialize	Initializes RSTC module with the user configuration
RSTC_Reset	Resets the processor and all the embedded peripherals including the memory system and, in particular, the Remap Command or this function asserts NRST Pin
RSTC_NRSTPinRead	Reads the NRST pin level, sampled on each "Master Clock(MCK)" rising edge
RSTC_ResetCauseGet	Reports the cause of the last reset
RSTC_CallbackRegister	Allows application to register callback with PLIB

Data types and constants


Name	Type	Description
RSTC_RESET_CAUSE	Struct	Identifies the type of reset
RSTC_RESET_TYPE	Enum	Identifies the type of reset, either Processor reset or External Reset
RSTC_CALLBACK	Typedef	RSTC Callback Function Pointer