How to use chip configuration option register?
In SPMC65 family MCU, the device configuration registers takes up 4-byte space namely $7FE0~$7FE3, thereinto, 3 registers are valid and read-only. Through these registers, user can set LVR, WDR, select NMI source, select clock source, and so on. But user can not write data to them; user can firstly config them in Fortis IDE, and then run an in-circuit Emulator & Programmer or a writer joining a computer to writer these information into a chip.