Microprocessor Systems Question: A 20-bit address bus, an 8-bit processor uses a 3-to-8 decoder to partition the memory space. What is the size of each portion
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Microprocessor Systems Question:
A 20-bit address bus, an 8-bit processor uses a 3-to-8 decoder to partition the memory space. What is the size of each portion?
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- 2. A microprocessor has a memory space of 4 MB. Each memory address occupies one byte. a) What is the address bus size (number of bits needed for addressing) of this microprocessor? b) What is the range (lowest to highest, in hexadecimal) of the memory space for this microprocessor? c) Complete the memory map by the address ranges (lowest to highest, in hexadecimal) 8 bits for each memory chip. 0x 0x 0x 0x 0x 0x 0x 0x Address 0 1MB 1MB 1MB 1MBMicroprocessor Systems Question: What is the address space of a processor with 32-bit data bus & 32-bit address bus with whole word indexing?c) Given a 32K x 8 RAM chips. Compute: i) the number of chips needed to build a 128K byte memory using 32K x 8 RAM. ii) the number of address lines that must be used to access the memory. iii) the number of lines connected to the address inputs of each chip, the number of lines to be used for chip select inputs and type of decoder to be used. iv) Determine the range of addresses for the 128K byte memory.
- Draw the figure for memory segments with 8086 microprocessor software model. Explain the logical address structure used for each segment (Explain which registers are used in logical address presentation of each segment; segment address : offset address). Give an example solution to find the physical address in a segment from the logical address for 8086 microprocessor.Which of the following is incorrect? Select one or more: In AVR, the data memory includes 32 general registers, 64 I/O registers and SRAM. In AVR, both program and SRAM memories have 8-bit data width. The AVR can read both an instruction and data from memory at the same time. The more registers we have for a CPU, the slower processing we can.A microprocessor has an increment memory direct instruction, which adds 1 to the value in memory location. The instruction has five stages: fetch opcode (four bus clock cycles); fetch operand address (three bus clock cyles); fetch operand (three bus clock cyles); add 1 to operand (three bus clock cyles); and, store operand (three bus clock cyles). By what amount (in percent) will the duration of the instruction increase if we have to insert two bus wait states in each memory read and memory write operation? Repeat assuming that the increment operation takes 13 cycles instead of 3 cycles.
- Part 2 Study and then differentiate between RAM and ROM memory units in a processor. Describe any possible methods through which you can implement a RAM memory using logic gates.- The stack memory is addressed by a combination of the plus offset. The PUSH and POP instructions always transfer between segment -bit number the stack and a register or memory location in the 8086 microprocessors. For string instructions, DI always addresses data in the segment. The 8086 LOOP instruction decrements register for a 0 to decide if a jump occurs and tests itThe upper 16-bits of the 40-bit binary count value are displayed on the four seven-segment displays as four hexadecimal digits. Hexadecimal values aren't good for human perception. How would you suggest the counter design be modified so that only decimal count values are displayed?
- the diagram on the right is for a register bank circuit that contain 8 registers. Each register is 16-bit. Theregister can read or write to one register at a time using address bus.Design the circuit and specify the width of EVERY bus.Q. To interface memory with the microprocessor, connect register the lines of the address bus must be added to address lines of the chip. A. single B. memory C. multiple D. triple3- what is the advantages of memory segment. 4- state the purposes of segment registér. 5- what is the different between general purpose register and segment register and flag register.