Author Question: How do you start the conversion process in the ADC and 8051 interface? A) Bit 6 of port 0 is ... (Read 47 times)

sjones · **on:** Jul 28, 2018

How do you start the conversion process in the ADC and 8051 interface?

A) Bit 6 of port 0 is pulsed LOW then HIGH. B) Bit 4 of port 0 is pulsed LOW then HIGH.
C) Bit 6 of port 0 is pulsed HIGH then LOW. D) Bit 4 of port 0 is pulsed HIGH then LOW.

Question 2

Consider a system with a microprocessor (point 1 ) whose data bus connects (point 2 ) to an input/output device (point 3). At which point is an octal latch required?

A) point 1 B) point 2 C) points 2 and 3 D) point 3