DSP-enhanced MAC unit for ARM microprocessor
Qianling Zhang · Semiconductor Technology · 2003
In this paper, a DSP-enhanced MAC unit with SIMD architecture for ARMmicroprocessor is proposed. By using two parallel 16-by-16 MACs, the proposed architecture canachieve great cycle reduction in multiplication of various lengths compared with conventional SISD(Single Instruction Single Data) architecture used in ARM. Especially for 16-bit MAC and 16-bitcomplex multiplication, the cycles needed are only 1/4 and 1/3 of ARM1022E. 0.35mm standard cellapplication shows that the MAC can run at 120MHz. These features make the MAC unit very suit-able for DSP applications.