Verilog HDL: 1x64 Shift Register

This example describes a single-bit wide, 64-bit long shift register in Verilog HDL. Synthesis tools detect groups of shift registers and infer altshift_taps megafunction depending on the target device architecture.

Figure 1. 1 x 64 Shift Register Top-Level Diagram

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Table 1 lists the ports and gives a description for each.

Table 1. 1x64 Shift Register Port Listing

Port NameTypeDescription
shiftInputShift enable input
sr_inInputShift register input
sr_outOutputShift register output

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