Assignment:
Timer alerts processor for a status scan of I/O device every 20 ms. I/O device interface has two 8-bit ports: status and data output.
Compute the time it takes to get the status and service the device, with an 8-MHz processor clock rate. All instructions take 12 clock cycles.
State your assumptions, if any.
Your answer must be typed, double-spaced, Times New Roman font (size 12), one-inch margins on all sides, APA format.