S12 / MagniV MicrocontrollersのトピックRe: What is difference between PFlash and DFlash?

What is difference between PFlash and DFlash?

Pogo — Thu, 30 Jun 2011 15:32:47 GMT

Hi All,

I'm new developer for Freescale. Now I worked on MC9S12XS128. It has two type of flash. One is PFlash and another is DFlash. What is difference? If I want to have some setting which can update by PC through UART, what type of flash do I use? PFlash or DFlash?

Regards,

Pogo

Re: What is difference between PFlash and DFlash?

J2MEJediMaster — Wed, 06 Jul 2011 20:11:39 GMT

See Chapter 19 of the MC9S12XS256 Reference Manual for S12XS128-specific flash memory information.

P-Flash is program flash, which is where you store program code.

D-Flash is data flash, where you store non-volatile data.

I suspect that you would want to save your settings in D-Flash.

---Tom