I am thinking about doing a hardware hack on the TI-83 (standard) which would involve burning a new rom. I am mainly wondering if the MX-ROM in the TI-83 is a one time writeable, or Flash so I could just rewrite it. In either case, I need to find a pinout for the chip which has been nearly impossible. If not the ROM chip, a processor pinout might work, as I may be able to trace the connections to the ROM, but I have also been unsucessful in finding that.
Here are some numbers off the chips in case anybody knows where to find info about them:
I know this is a difficult area to find info, but if anyone knows anything I would greatly appreciate it. Thanks