8085 MICROPROCESSOR
FEATURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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distinct I/O devices
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memory locations
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only input devices
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only output devices
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Detailed explanation-1: -Explanation: In memory-mapped scheme, the devices are viewed as memory locations and are addressed likewise. Sanfoundry Global Education & Learning Series – Microprocessors.
Detailed explanation-2: -Memory mapped I/O is an interfacing technique in which memory related instructions are used for data transfer and the device is identified by a 16-bit address. In this type, the I/O devices are treated as memory locations. The control signals used are MEMR and MEMW.
Detailed explanation-3: -The semiconductor memories are organised as dimension(s) of array of memory locations. Explanation: The semiconductor memories are organised as two dimensions of an array which consists of rows and columns. Explanation: The bits in a selected location are accessible using data bus.
Detailed explanation-4: -08․ In 8085 microprocessor system with memory mapped I/O, which of the following is true? With the memory mapped I/O arithmetic and logic operations can be directly performed whereas with I/O mapped I/O it is not possible.
Detailed explanation-5: -Answers. Since joystick is an input device, it reads data from the external devices.