Highly configurable multi-port DDR/LPDDR/RLDRAM memory controller with AXI4 system interface (up to 32 ports), DFI 3.1/5.1 PHY interface, JEDEC-compliant DDR5/DDR4/DDR4-3DS/LPDDR3/LPDDR2 support, and architecture tuned for high frequency, low power, and rapid debug. UMMC is technology-independent, system-validated RTL that decouples application logic from the PHY via DFI 3.1/5.1, supports 8–64-bit data widths (DDR/LPDDR) and x9/x18/x36 (RLDRAM2/3), chip-select interleaving, and AXI4 multi-port (up to 32). It implements rich QoS arbitration, 1:1 / 1:2 / 1:4 MC:PHY clock ratios, separate read/write queues, out-of-order AXI IDs, and extensive power features (self-refresh, partial-array self-refresh, per-/multi-bank refresh, active/precharge/deep power-down). Delivered with configurable RTL, HDL testbench/behavioral models, protocol checkers, performance monitors, and design/verification/synthesis guides.