The data transfer schemes of it can categorized depending upon the capabilities of I/O devices for accepting serial or parallel data.įor these devices and for these above mention reasons serial I/O mode is used. Now question is what are the data transfer scheme is available in 8085 microprocessor? In 8085 microprocessor following data transfer schemes may be considered for smooth data transfer process. To overcome this problem of speed mismatching between the microprocessor and I/O devices, we introduce data transfer schemes of 8085 microprocessor. So we have to do some thing to over come that problem. In that case, the main problems arise due to mismatch of the speed of the I/O devices and the speed of microprocessor or memory. Now the main concern is for data transfer between the microprocessor and I/O devices. The main reason for that the speed of the memory is almost compatible with the speed of 8085 microprocessor. Because the same technology is used in the manufacturing of memory and microprocessor. Another very important thing is that we can get very smooth data communication between microprocessor and memory. We know that data transfer may take place between microprocessor and memory, microprocessor and I/O devices and memory & I/O devices. What are those devices we connect using data transfer scheme?.So in this topic we have to find answers of some very important questions. Among of them some devices has equal processing speed and some devices does not.
In 8085 microprocessor based systems several input and output devices we may connect. Here we can see data transfer schemes of 8085 microprocessor.
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