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Home > FPGA Technical Tutorials > Design Recipes for FPGAs Using Verilog and VHDL > Latches, Flip-Flops, and Registers

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Latches, Flip-Flops, and Registers

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Introduction

There are different types of storage elements that will occur from different HDL code, and it is important to understand each of them, so that the correct one results when a design is synthesized. Often bugs in hardware happen due to misunderstandings about what effect a particular HDL construct (in VHDL or Verilog) will have on the resulting synthesized hardware. In this chapter, we will introduce the three main types of storage elements that can be synthesized from VHDL or Verilog to an FPGA platform: which are latches, flip-flops, and registers.

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