When the program scan reaches an immediate I/O instruction, the scan is interrupted and the bits of the addressed word are updated.

Name: When the program scan reaches an immediate I/O instruction, the scan is interrupted and the bits of the addressed word are updated.
Brand: Quizplus
Rating: 4.9 (29 reviews)

Question

Quizplus · Accepted Answer

This is because immediate I/O instructions, such as IN or OUT, are executed immediately and do not wait for the entire program to complete. Therefore, the scan must be interrupted in order to update the bits of the addressed word.

When the Program Scan Reaches an Immediate I/O Instruction, the Scan