MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -When memory write or I/O read are active data is from the processor: Input.

Detailed explanation-2: -From the above table, when memory write or I/O read are active, data remains output of the processor.

Detailed explanation-3: -The memory unit supports two basic operations: read and write. The read operation reads previously stored data and the write operation stores a new value in memory. Both of these operations require a memory address. In addition, the write operation requires specification of the data to be written.

Detailed explanation-4: -The memory activates the MFC signal when the requested operation is completed.

Detailed explanation-5: -Control signal indicates data is read into or written out of CPU or the I/O device or memory is ready to transfer data. When the device is ready for data transfer, the interface generates an interrupt request to the computer.