Topic: Microprocessors
When the 8051 is reset and the line in HIGH, the program counter points to the first program instruction in the
- A. internal code memory
- B. external code memory
- C. internal data memory
- D. external data memory
Answer: A. internal code memory
Explanation: When the 8051 microcontroller is reset and the $\overline{EA}$ (External Access) line is HIGH, the Program Counter fetches the first instruction from the internal code memory starting at address 0000H.