Because the need of big code more than 64K. knowing that uPSD25xx from ST can handle up to 256K-512K code size.
But after read their data sheet . I'm still not clear about it's structure. seem it's page structure. which mean I have to assign which page every time the code crossing each page. which I think this will make so much troubles like PIC family can only handle 2K code / page.
I'm not sure mine is right or wrong? anyone who know please explain. I need a chip which can continue running in a seamless manner.
Thanks