[CNX-Software] - Efinix Sapphire RV64 SoC – Configurable RISC-V soft-cores with DDR3, LPDDR4x, and HyperRAM for Efinix FPGAs

Efinix has introduced the Sapphire RV64 SoC, a configurable 64-bit RISC-V soft-core processor designed for its Titanium and Trion FPGAs. It is based on the VexiiRiscv core and can be configured with one to four RISC-V cores running at up to 400 MHz. The Sapphire RV64 has a seven-stage pipeline, configurable L1 caches, optional 64–512 KB L2 cache, and 4–512 KB of on-chip RAM. It supports DDR3, LPDDR4x, and HyperRAM with up to 512-bit AXI interfaces and external memory from 4 MB to 8 GB. Other features include an optional FPU, branch predictor, prefetchers, SV39 MMU, up to 32 GPIOs, five I²C, three SPI, three UARTs, timers, watchdog, and up to eight user interrupts. Efinix Sapphire RV64 SoC specifications: CPU 1 to 4x VexiiRiscv 64-bit cores with a 7-stage pipeline (fetch, align-decompress, decode, issue, execute, memory, and writeback) Configurable system clock frequency from 20 MHz to 400 MHz Supports RV64IMACFD_Zba_Zbc_Zbs extensions [...]

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