题目内容

() register holds the actual instruction to be decoded and executed. ( )

A. PC
B. IR
C. MAR
D. MBR

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A microcontroller with 64KB of code memory will require a program counter of ( )

A. 8-bit size
B. 16-bit size
C. 32-bit size
D. 64-bit size

The microcontroller is useful in systems that have fixed programs for dedicated applications. ( )

8-bit CPU means this CPU can recognize and process eight bits at a time. ( )

Data bus must be bi-directional because it has to write as well as read data to/from memory or peripherals. ( )

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