Lesson 64 - Example 39: D Flip-Flops in VHDL - YouTube
VHDL Universal Shift Register
4-Bit Universal Shift Register Behavioral Vs. Structural Description Behavioral Description – Behavior model of a shift register Describe the operation. - ppt download
8 ways to create a shift register in VHDL - VHDLwhiz
VHDL Universal Shift Register
VHDL || Electronics Tutorial
Universal Shift Register in Digital logic - GeeksforGeeks
4 Bit register design with D-Flip Flop (Verilog Code included) - YouTube