基于DCAP协同优化模型的USB2.0数据链路层设计OA

Front-end RTL design is a critical phase determining a chip's performance,power,and area(PPA).Conventional methodolo-gies often prioritize functional implementation,lacking systematic optimization for PPA metrics.To address this,this paper proposes a multi-dimensional RTL optimization approach-the DCAP co-optimization model.This model establishes a framework encompassing four dimensions:Data-path(D),Computation(C),Area-management(A),and Power-management(P).Using the USB 2.0 data link layer as a case study,data throughput is enhanced via a coupled handshake scheme,computational efficiency is optimized using a real-time iterative CRC architecture,area overhead is controlled through resource management,and power consumption is reduced by impro-ving clock gating coverage.Back-end implementation results based on TSMC 65nm technology demonstrate that the design achieves a throughput of 52.3 MB/s(protocol efficiency:87%)in High-Speed mode,with a power consumption of 0.156 mW and an area of 3 333.6 μm2.Compared to the pre-optimized design,this represents a 39%reduction in power and a 23%reduction in area.In conclu-sion,the proposed DCAP model provides a reusable methodological guide for addressing PPA optimization challenges in digital circuit design at the RTL stage.