In a memory mapped I/O in 8085, which of following is trueSelect oneOa Arithmetc and Logical Operations can be carried out directly with VOb. Devices have s bit addressc. Devices accessed using IN and OUT instructionsOd: 256 input and 256 output devices can be configured
Question
In a memory mapped I/O in 8085, which of following is trueSelect oneOa Arithmetc and Logical Operations can be carried out directly with VOb. Devices have s bit addressc. Devices accessed using IN and OUT instructionsOd: 256 input and 256 output devices can be configured
Solution
In a memory mapped I/O in 8085, which of the following is true?
a. Arithmetc and Logical Operations can be carried out directly with V b. Devices have s bit address c. Devices accessed using IN and OUT instructions d. 256 input and 256 output devices can be configured
To determine which statement is true, we can analyze each option:
a. Arithmetc and Logical Operations can be carried out directly with V: This statement is not true. In memory mapped I/O, arithmetic and logical operations are not performed directly with the accumulator (V), but rather with the data stored in memory locations.
b. Devices have s bit address: This statement is not clear. It seems to be incomplete or contain a typo. Without further information, we cannot determine if it is true or false.
c. Devices accessed using IN and OUT instructions: This statement is true. In memory mapped I/O, devices are accessed using the IN and OUT instructions. IN is used to read data from an input device, and OUT is used to send data to an output device.
d. 256 input and 256 output devices can be configured: This statement is not true. In the 8085 microprocessor, memory mapped I/O allows for a maximum of 256 input or output devices to be configured, not both. Therefore, the total number of devices that can be configured is 256, not 512.
Based on the analysis, the correct statement is:
c. Devices accessed using IN and OUT instructions
Similar Questions
Ques 1: Explain why the number of output ports in the peripheral mapped I/O is restricted to 256 ports. Ques 2: In the peripheral mapped I/O, can an input and an output port have same address ? Ques 3: If an output and input port have same 8-bit address , how can the 8085 microprocessor differentiate between the ports ? Ques 4: Specify the two 8085 signals that are used to latch data in an output port . Ques 5: Specify the two types of pulse required to latch data in the 7475 . Ques 6: Are data latched in 7475 at the leading edge, during the level, or at the trailing edge of the enable signal ? Ques 7: Specify the 8085 signals that are used to enable an input port. Ques 8: Explain why a latch is used for an output port, but a tri state buffer can be used for an input port ? Ques 9: What are the control signals necessary in the memory mapped I/O ? Ques 10: Can the microprocessor differentiate whether it is reading from memory mapped input port or from memory ?
2) Discuss the memory organization in 8086 processor
Which of the following is not true about intel 8086 microprocessorQuestion 3Select one:a.It can be operated in both maximum and minimum modeb.It is a 16 microprocessorc.It has assembly language instructions than 8085d.Both the data and address lines are 16 each
Which of the following intel 8085 signals is responsible for determining when to multiplex address and data busesQuestion 6Select one:a.HOLDb.HLDAc.ALEd.READY
A technique that allows the direct control of peripheral registers by treating them as if they were memory locations is calledGroup of answer choicesDirect Memory Accessprogrammed I/Ointerrupt-driven I/Omemory-mapped I/O
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