8-bit Microcontrollers中的主题 Re: Deciphering markings on a mask-programmed HC11

Deciphering markings on a mask-programmed HC11

meterman1980 — Mon, 12 May 2025 16:46:04 GMT

I've had this board kicking around for a while that has a Motorola processor on it (in a PLCC-52 form factor).

I recently realized that it is actually a mask-programmed version of the 68HC11E9.

There are some additional markings on the chip, and I just want to verify that they would include the firmware that would have been masked into the chip at the time of manufacture.

Note: Some information on this thread has been removed as it may contain sensitive information.

Re: Deciphering markings on a mask-programmed HC11

Pablo_Ramos — Wed, 07 May 2025 17:27:45 GMT

Hi @meterman1980,

For marking information, please contact your Authorized NXP Representative.

Best Regards,

Pablo

Re: Deciphering markings on a mask-programmed HC11

meterman1980 — Mon, 12 May 2025 12:28:53 GMT

I don't even have an authorized rep. I'm just a hobbyist.

I eventually got my answer elsewhere.