[msla]

So is the program of that chip burned into mask ROM (do people still do that?) or could that thing be taken out and repurposed? The datasheet mentions handy-dandy device programmers that plug into your PC and probably mandate the use of a horrible proprietary development environment, but maybe that's only for special evaluation parts?

[wffurr]

According to another article on the authors site, linked from this one, most of these microcontrollers are “write once”: https://cpldcpu.wordpress.com/2019/08/12/the-terrible-3-cent...