Chapter 2: Dsp48E1 Description And Specifics - Xilinx 7 Series User Manual

DSP48E1 Description and Specifics
This chapter provides technical details of the DSP element available in 7 series FPGAs, the
DSP48E1 slice.
The DSP48E1 slice provides improved flexibility and utilization, improved efficiency of
applications, reduced overall power consumption, and increased maximum frequency.
The high performance allows designers to implement multiple slower operations in a
single DSP48E1 slice using time-multiplexing methods.
The DSP48E1 slice supports many independent functions. These functions include
multiply, multiply accumulate (MACC), multiply add, three-input add, barrel shift, wide-
bus multiplexing, magnitude comparator, bitwise logic functions, pattern detect, and wide
counter. The architecture also supports cascading multiple DSP48E1 slices to form wide
math functions, DSP filters, and complex arithmetic without the use of general FPGA logic.
This chapter contains the following sections:
•
•
•
The 7 series FPGA DSP48E1 slice is shown in
equivalent to the Virtex®-6 FPGA DSP48E1 slice and is an extension of the DSP48E slice in
Virtex-5 devices, described in the Virtex-5 FPGA XtremeDSP Design Considerations User
Guide
7 Series DSP48E1 User Guide
UG479 (v1.10) March 27, 2018
DSP48E1 Slice Features
Architectural Highlights of the 7 Series FPGA DSP48E1 Slice
Simplified DSP48E1 Slice Operation
[Ref 1].
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Chapter 2
Figure 2-1. The slice is functionally
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