User guide

62 www.xilinx.com System Generator for DSP Getting Started Guide
UG639 (v 14.3) October 16, 2012
Chapter 4: Getting Started
The Delay Block
The Delay block is used to synchronize dataflow through the FPGA. This block maps to a highly-efficient shift
register structure built from a slice lookup table called an SRL16 that is 85% smaller than using registers.