XA-H4 Bank 0 Bus Width after Reset

Question:
How is the Bank 0 bus width affected by the three different types of resets (External Reset, Watchdog Timer Overflow, and software RESET instruction).

Answer:
The Bus width configuration, which selects between 8 bit and 16 bit, uses the WAIT_Size16 pin as described in 3.7.1 of the XA-H4 Users Manual. This pin is sampled after the rising edge of ResetIn, which only occurs during a hardware reset. However, the value that is sampled from the WAIT_Size16 pin is "latched" and this latched value is used during a WDT reset or an internal RESET instruction. The WAIT_Size16 pin is only re-sampled if another hardware reset occurs. This assures that the 3 types of Reset (hardware reset, WDT reset, and the internal RESET instruction) produce the same default results regarding the state of Bank 0.