Here we will see the control word format for 8255A PPI IC. We already discussed in my previous post about “Programmable Peripheral Interface (PPI) IC 8255” and “OPERATIONAL MODES OF 8255 PPI IC”. Now we will see how can we tell microprocessor that which port of 8255, we use as input or output? Some question …
Here we come with a new topic operational modes of 8255 PPI IC. In my previous post I discussed on details of “Programmable Peripheral Interface (PPI) IC 8255”. Now here we see how we can classified 8255 PPI IC depending upon its operational modes. The operational modes of 8255 PPI IC can be classified into …
Here we see how can we use Programmable Peripheral Interface (8255) for data transfer. As we know Programmable Peripheral Interface (8255) is used to interface input and output device with microprocessor. There are various methods of data transfer from the microprocessor to output devices or vice-versa. It has already discussed in my earlier posts. So …
