Across
- 2. : Special Function Registers that control specific features of the 8051
- 5. : Hardware feature used for counting events or measuring time intervals
- 8. : Small storage locations inside the CPU for temporary data
- 9. : Primary register used for arithmetic and logic operations
- 10. : Pin that provides a pulse to latch the low byte of the address during external memory access
- 11. : Holds the address of the next instruction to execute
- 13. : Program Status Word register that stores flags like carry and parity
- 14. : 8051 has four 8-bit I/O interfaces named P0 to P3
Down
- 1. : Circuit that provides the clock signal to drive the microcontroller
- 3. : Type of communication supported through the 8051 UART
- 4. : Type of RAM area where individual bits can be set or cleared
- 6. : Mechanism that temporarily halts the main program to service urgent tasks
- 7. : Basic time unit for executing one instruction, typically 12 clock periods
- 8. : On-chip memory used for data storage and stack
- 12. : On-chip memory that stores the program code