Digital Circuit Fundamentals 1 Unit 4 – 4-Bit Shift Register
Shift right is defined as a bit or data movement toward QD: a bit of data is shifted from a less
significant register toward a more significant register. 0 shifted into a flip-flop resets its output to
- 1 shifted into a flip-flop sets its output to 1.
Shift left is defined as a bit or data movement toward QA: a bit of data is shifted from a more
significant register toward a less significant register. 0 shifted into a flip-flop resets its output to
- 1 shifted into a flip-flop sets its output to 1.
NEW TERMS AND WORDS
Inhibit - to prevent an action such as data shift.
bidirectional - moving in either of two directions (for example, left or right).
shift right - movement of data from a less significant register to a more significant register.
shift left - movement of data from a more significant register to a less significant register.
EQUIPMENT REQUIRED
F.A.C.E.T. base unit
Multimeter
Oscilloscope, dual trace
DIGITAL CIRCUIT FUNDAMENTALS circuit board