Consider a hypothetical microprocessor generating a 16-bit address (for example, assume that the program counter and the address registers are 16 bits wide) and having a 16-bit data bus. a. What is the maximum memory address space that the processor can access directly if it is connected to a "16-bit memory"? b. What is the maximum memory address space that the processor can access directly if it is connected to an "8-bit memory"? c. What architectural features will allow this microprocessor to access a separate "I/O space"? d. If an input and an output instruction can specify an 8-bit I/O port number, how many 8-bit I/O ports can the microprocessor support? How many 16-bit I/O ports? Explain.

Consider a hypothetical microprocessor generating a 16-bit address (for example, assume that the program counter and the address registers are 16 bits wide) and having a 16-bit data bus. a. What is the maximum memory address space that the processor can access directly if it is connected to a "16-bit memory"? b. What is the maximum memory address space that the processor can access directly if it is connected to an "8-bit memory"? c. What architectural features will allow this microprocessor to access a separate "I/O space"? d. If an input and an output instruction can specify an 8-bit I/O port number, how many 8-bit I/O ports can the microprocessor support? How many 16-bit I/O ports? Explain.

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Description: Consider a hypothetical microprocessor generating a 16-bit address(for example, assume that the program counter and the addressregisters are 16 bits wide) and having a 16-bit data bus.a. What is the maximum memory address space that theprocessor can

Database System Concepts

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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

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Consider a hypothetical microprocessor generating a 16-bit address
(for example, assume that the program counter and the address
registers are 16 bits wide) and having a 16-bit data bus.
a. What is the maximum memory address space that the
processor can access directly if it is connected to a "16-bit
memory"?
b. What is the maximum memory address space that the
processor can access directly if it is connected to an "8-bit
memory"?
c. What architectural features will allow this microprocessor to
access a separate "I/O space"?
d. If an input and an output instruction can specify an 8-bit I/O
port number, how many 8-bit I/O ports can the microprocessor
support? How many 16-bit I/O ports? Explain.

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