复位指令

datasheet  System Reset 部分有说明

System Reset
The system reset can be issued by one of the following listed events. For these reset event flags
can be read by RSTSRC register.
 Hardware Reset
 Power-on Reset (POR)
 Low level on the Reset Pin (nRST)
 Watchdog Timer Time-out Reset (WDT)
 Low Voltage Reset (LVR)
 Brown-out Detector Reset (BOD)
 Software Reset
 MCU Reset - SYSRESETREQ(AIRCR[2])
 Cortex-M0 Core One-shot Reset - CPU_RST(IPRSTC1[1])
 Chip One-shot Reset - CHIP_RST(IPRSTC1[0])
Note: ISPCON.BS keeps the original value after MCU Reset and CPU Reset.