Cypress FM4 Series - Resets to Cortex-M4

CHAPTER 4: Resets
FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E 167
3.2.1 Resets to Cortex-M4
The device has three reset inputs to the Cortex-M4: PORESETn, SYSRESETn, and nTRST.
The following provides reset factors for these three reset inputs.
Power-on Reset PORESETn
Reset factors
− Power-on reset (PONR)
− Low-voltage detection reset (LVDH)
− Deep standby transition reset (DSTR)
System Reset SYSRESETn
Reset factors
− Power-on reset (PONR)
− Low-voltage detection reset (LVDH)
− INITX pin input (INITX)
− Software watchdog reset (SWDGR)
− Hardware watchdog reset (HWDGR)
− Clock Failure Detection reset (CSVR)
− Anomalous frequency detection reset (FCSR)
− Software reset (SRST)
− Deep standby transition reset (DSTR)
SWJ-DP Reset nTRST
Reset factors
− Power-on reset (PONR)
− Low-voltage detection reset (LVDH)
− TRSTX pin input (TRSTX)
− Deep standby transition reset (DSTR)