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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ECP2 датащи(PDF) 28 Page - Lattice Semiconductor |
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ECP2 датащи(HTML) 28 Page - Lattice Semiconductor |
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28 / 386 page  2-25 Architecture Lattice Semiconductor LatticeECP2/M Family Data Sheet MULTADDSUB sysDSP Element In this case, the operands A0 and B0 are multiplied and the result is added/subtracted with the result of the multi- plier operation of operands A1 and A2. The user can enable the input, output and pipeline registers. Figure 2-25 shows the MULTADDSUB sysDSP element. Figure 2-25. MULTADDSUB Multiplier Multiplier Add/Sub Pipe Reg Pipe Reg n m m n m n m n n m m+n (default) m+n+1 (default) m+n+1 (default) m+n (default) x x n m m n m n n m Multiplier B0 Multiplicand A0 Multiplier B1 Multiplicand A1 Signed A Shift Register A In Shift Register B In Shift Register A Out Shift Register B Out Output Addn Pipeline Register CLK (CLK0,CLK1,CLK2,CLK3) CE (CE0,CE1,CE2,CE3) RST(RST0,RST1,RST2,RST3) Input Register Pipeline Register Input Register Pipeline Register Pipeline Register Pipe Reg Signed B Pipeline Register Input Register Input Data Register A Input Data Register A Input Data Register B Input Data Register B To Add/Sub To Add/Sub To Add/Sub |
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