Hi all,
I need to program two old MCUs: P89C52X2BN and P89C52RD2.
For the P89C52RD2, I understand it supports ISP via serial. But not known how to active and ISP/IAP protocol?
For the P89C52X2BN, How do I flash it? Does it need a parallel programmer? If need, how protocol and how to active flash mode?
I'm mainly looking for the official programming documentation for these two chips (especially the X2BN), so I can reference the correct flash programming interface and timing. If you have the datasheet's programming section or a link, please share.
Thanks!