Microcontroller Crossword AAT2

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Across
  1. 1. Which memory area receives data when a PUSH operation is performed in 8051?
  2. 4. Which microcontroller architecture uses separate memory spaces for instructions and data storage?
  3. 6. The rate at which bits are transmitted in serial communication
  4. 8. The integrated circuit that combines CPU, RAM, ROM, and peripherals on a single chip is called a
  5. 10. Which instruction performs decimal adjustment after BCD addition?
  6. 15. Which interrupt in 8051 has the highest priority by default?
  7. 17. The internal register used for most arithmetic and logical operations.
  8. 18. The interface standard commonly used for serial communication in computers and embedded systems.
  9. 19. The size of internal RAM available in the standard 8051 microcontroller.
  10. 20. Which 8051 port becomes address/data multiplexed (A0–A7 and D0–D7) when accessing external memory?
Down
  1. 2. The oscillator circuitry component generally connected to XTAL1 and XTAL2 pins.
  2. 3. A special register in 8051 that stores the address of the next instruction to be fetched.
  3. 5. Execution of ANL C, bit affects:
  4. 7. Which addressing mode in 8051 accesses data stored in external memory using DPTR?
  5. 9. The MOV instruction, push pop instruction, XCHG instruction comes under ______ instruction
  6. 11. A system with strict timing constraints where missing deadlines can cause failure is called a ______ real-time system.
  7. 12. Which operation in 8051 converts an Accumulator value like 3CH into C3H?
  8. 13. Which addressing mode is used in the instruction “MOV A,#55H”?
  9. 14. The communication protocol supported by 8051 using TXD and RXD pins
  10. 16. Name the signal pin used to enable external program memory access in 8051.