H All,

I am presently working with a Phillips P89C52 (8KB of Flash). My application requires that 4 bytes being preserved even if the system is powered down.
The P89C52 is said to be "parallel programmable". Is there any way to write a few bytes to Flash?

Does parallel programming means that this chip can only be written to with a programmer?

Basically, is there any options besides adding to the design a small I2C chip which will provide me with some storage?


Thanks in advance for the answers ...

Daniel , Montreal.