Mitsubishi Q2AS - EROMWR vs. EMOV

Hi all,

I use a Q2AS-S1 CPU, with a Q1MEM-512SE SRAM+EEPROM memory module. I want to save some file registers on the EEPROM. To do so I use the EMOV-function. However, when I mentioned this to our local distributor they advised me to use the EROMWR-function instead. However, they could not give me a good reason for doing so, and I could not find it anywhere in the documentation either. Can anybody tell me what the difference between these two functions is?

Thanks in advance,
Caspar