A only RAMS B. only DRAM C only Flash ROM D. both RAM and ROM 2. An 8-bit microc

Question

A only RAMS B. only DRAM C only Flash ROM D. both RAM and ROM 2. An 8-bit microcontroller uses A an 8-bit address bus B only 8-bit control signals only 8-bit control signals only 8-bit control signals only 8-bit control signais only 8-bit control signals C. an 8-bit data bus D an 8-bit program counters register 3. For the 8051 microcontroller, the lowest 8 bytes of on board RAM are A. Bank 2 B. Bank 1 C. Bank 0 D. Bank 3 4. Which of the following 8051 registers contains the address of the next instruction to be executed? A. A B. RO-R7 C. PC D. B 5. Which of the following is actually stored in on-chip program memory? A. Java codes of the application program B. The assembly source files of the application program C. The hex object codes of the application program D. C codes of the application program 6. What is the maximum number of memory locations (bytes) that can be accessed by an address bus that is 16 bits wide? A. 8 B. 64 C. 64K D. 8K

Explanation / Answer

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Answer1) D. both RAM and ROM

Answer2) C. an 8-bit data bus
Despite having an 8-bit data bus, many 8-bit microcontrollers have a 16-bit address bus and can address 2^16 or 64K bytes of memory.

Answer3) C. Bank 0

Answer4) C. program counter

Answer5) C. The hex object codes of the application program

Answer6) c.64K

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