> I've read the 16F628 datasheet but i'm still in the
> dark about one thing; if I do HVP ICSP using MCLR,
> and program the PIC to have the MCLR pin as an IO
> pin (ie set it to internal MCLR), can I then reprogram
> it *again* at a later date using HVP ICSP MCLR??

Yes.  High voltage programming can set the flash and data EEPROM in an F
part to any valid state, regardless of what it was set to before.  Of
course this assumes the programmer implements the proper algorithms to
achieve this.


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