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Microprocessor: Microprocessor interfacing
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Microprocessor: Microprocessor interfacing
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25 Questions

1. The part of the data interface and control unit, that points to the source of exception generated is
2. The bits that affect the result of arithmetic operations like ADD, SUB, MUL, DIV are
3. If the result is rounded according to the rounding control bits, then the exception generated is
4. In static memory, the lower 8-bit bank of an available 16-bit memory chip is called
5. If Numeric Processor Read (NPRD) active-low input pin is activated, then it enables a data transfer from
6. The precision is decided by the
7. The unit that executes all the numeric processor instructions in 8087 is
8. In static memory, the upper 8-bit bank of an available 16-bit memory chip is called
9. Which of the following is not a block of an architecture of 80287?
10. The arrangement of data that is to be shifted successively, whenever required for the execution, is done by
11. If the microprocessor has 10 address lines, then the number of memory locations it is able to address is
12. If Numeric Processor Write (NPWR) active-low input pin is activated, then it enables a data transfer from
13. To obtain 16-bit data bus width, the two 4K*8 chips of RAM and ROM are arranged in
14. Invalid operation is the exception generated due to
15. If Numeric Processor Write (NPWR) active-low input pin is activated, then it enables a data transfer from
16. The bits that affect the result of arithmetic operations like ADD, SUB, MUL, DIV are
17. If Clock Mode (CM) input pin is held low, then the CLK input is divided by
18. Which of the input line(s) indicate that the CPU is performing an escape operation, and enables 80287 to execute the next instruction?
19. If the opcode bit is D=1, then the source and destination operands are
20. The bits that are modified depending upon the result of the execution of arithmetic instructions are
21. If at a time Ao and BHE(active low) both are zero then, the chip(s) selected will be
22. If the stack flag is set, and condition code bit C1=0, then the stack is
23. The register that allows the register programmer to select the required processing options is
24. The precision is decided by the
25. If the result is infinity, then the exception generated is

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