US Patent 11941407 Pipeline architecture for bitwise multiplier-accumulator (MAC)

A unit for accumulating a plurality N of multiplied M bit values includes a receiving unit, a bit-wise multiplier and a bit-wise accumulator. The receiving unit receives a pipeline of multiplicands A and B such that, at each cycle, a new set of multiplicands is received. The bit-wise multiplier bit-wise multiplies bits of a current multiplicand A with bits of a current multiplicand B and to sum and carry between bit-wise multipliers. The bit-wise accumulator accumulates output of the bit-wise multiplier thereby to accumulate the multiplicands during the pipelining process.