Research on Validation Oriented DMA Misaligned Transmissions

In System-on-Chip (SoC) architectures, the data transfer efficiency of Direct Memory Access (DMA) controllers plays a pivotal role in overall system performance. However, practical implementations frequently encounter address misalignment issues where source/destination addresses are not aligned with the burst_size (bytes transferred per transaction). Such misalignment significantly compromises DMA’s transmission reliability and efficiency. To address this challenge, this paper proposes a novel parameterized verification framework for DMA unaligned transmission, which ensures data integrity through systematic validation methodologies. The key contributions include: 1) A configurable verification architecture supporting dynamic burst_size and address offset configuration; 2) Comprehensive coverage of misalignment scenarios. FPGA prototyping demonstrates 100% data transmission accuracy. This work establishes a new verification paradigm for DMA controller design while providing theoretical foundations for SoC-level data transfer optimization, ultimately enabling robust highperformance data processing.