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Introduction
The Hard Multiplier Accumulator for SmartFusion2, IGLOO2, and RTG4 supports normal (Figure 1) and
dot product (Figure 2) multiplication. Blue registers indicate control signals; brown registers are for data.
Key Features
The Hard Multiplier Accumulator supports two operating modes: Normal and Dot Product.
• A structural netlist is generated in either Verilog or VHDL
• Individual inputs and outputs can be optionally registered with:
– A common rising edge clock
– Independent active-low asynchronous and synchronous clear controls
– Independent active-high enable controls
• An additional cascade output CDOUT can be enabled. This is the sign-extended 44 bit copy of
output P
• An additional Carry In input can be enabled
Figure 1 • Normal Multiplier Accumulator
Figure 2 • Dot Product Multiplier Accumulator
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