> It is related to whether the chip is able to change its own data memory
> without being in programming mode.
> The PIC16F87/88 can do it; the PIC16F818/819 cannot. The PIC16F876A can
> do it, the PIC16F876
> cannot.

the datasheet for the 876, 877 and friends has a section on writing to flash
program memory and the ICD2 contains an 16f877 with a bootloader on it (a
lot of clones use an 877a instead with modified bootloader code).


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