memory to store program code. 7 Generally, a modem microcontroller uses A only RAMS B only DRAM C. only Flash ROM D. both RAM and ROM 8. An 8-bit microcontroller uses A an 8-bit address bus B. only 8-bit control signals C. an 8-bit data bus D. an 8-bit program counters register 9. 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 10. Which of the following 8051 registers contains the address of the next instruction to be executed? B. RO-R7 C. PC D. B 11. Which of the following is actually stored in on-chip program memory? A. C codes of the application program B. The assembly source files of the application program C. The hex object codes of the application program D. Java codes of the application program 12. 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 13. Which register(s) can be used with register indirect (MOV @Rx, A) addressing mode? A. RO only B. R7 only C. RO and R1 D. R6 and R7