Firmware (using RTXTiny) 80C552 -> Dallas DS87C550

Hi there, is anybody experienced in migrating existing software to the DS87C550? I have an existing software, that I didn't write, that was running on the 30MHz Version of the 80c552. This processor...
Firmware (using RTXTiny) 80C552 -> Dallas DS87C550

Hi there, is anybody experienced in migrating existing software to the DS87C550? I have an existing software, that I didn't write, that was running on the 30MHz Version of the 80c552. This processor...
Replacement for the 80c552

Hi there! An old project of mine is runnining on a 80C552/30MHz (KBA, is the psot fix, I think). This processor is obsolete, but I need the speed (I think). The software was written by somebody else...
Replacement for the 80c552

Hi there! An old project of mine is runnining on a 80C552/30MHz (KBA, is the psot fix, I think). This processor is obsolete, but I need the speed (I think). The software was written by somebody else...
philips 80c552 example spi programs

hai please anybody send spi programs 80c552 microcontroller please very urgent.