A DSP Double Data Rate (DDR) technique may be used to used to improve the performance achieved with the DPU. In this configuration, two input clocks for the DPUCZDX8G are needed: A 1x clock for general logic and a 2x clock for DSP slices are employed. For more information, see Clocking. The difference between a DPUCZDX8G not using the DSP DDR technique and a DPUCZDX8G enhanced usage architecture is shown in the following image.
Note: All DPUCZDX8G architectures referred to in this document refer to DPUCZDX8G enhanced usage, unless otherwise specified.
Figure 1. DPUCZDX8G with (Enhanced Usage) and without DSP DDR