for Banana Pi -RV2 open source gateway is a device based on Siflower SF21H8898 SoC, 1 x 2.5G WAN network interface, 5 Gigabit LAN network interface, onboard 512MB DDR3 memory, 128 MiB NAND, 16 MiB NOR, M.2 interface, MINI PCIE and USB 2.0 interface, etc. for Banana Pi -RV2 open source gateway is a collaboration between Silicon and for Banana Pi open source community (for Banana Pi) SF2H8898 chip Brief. SF21H8898 is a high performance industrial-grade SOC gateway chip developed by Siflower Communications. It adopts advanced TSMC 12nm FFC process and integrates four cores inside 64-bit RSIC-V processor and dedicated network processing accelerator (NPU) (supports L2/L3 hardware processing, IPv4/IPv6 dual stack, 20Gbps switching capacity, full byte wire-speed forwarding), network-side support for QSGMII, SGMII/HSGMII and RGMII interfaces. IEEE 1588 functionality is supported synchronization. It supports external DDR3/DDR3L/DDR4 SDRAM and NAND/NOR SPI Flash. The high-speed interface is USB2.0, PCIE2.0, and the low-speed interface is SPI, UART, I2C, PWM, etc. It can be used as enterprise gateway and industrial control gateway. Siflower SF21H8898 chip diagram. Siflower SF21H8898 chip typical application scenarios. Siflower SF21H8898 4 core RISC-V processor With Siflower NPU, enterprise-class gateway level data forwarding processing capability can be achieved. 512MB DDR3 RAM. 1 x 2.5GbE network and 5 x giga port. 128 MB SPI NAND and 16 MB SPI NOR flash that the onboard system is indestructible, M.2 2242/2230 interface support NVMe SSD (PCIe gen 2 x1) RTC PoE Network Hardware Hardware interface SoC: Siflower SF21H8898 4 core RISC-V @ 1.25GHz RAM: 512MB DDR3 Storage: 128 MB SPI NAND Flash is used in U-boot and Linux systems 16 MB SPI NOR flash,For U-boot and Linux systems, write protected by default (refresh can be enabled by jumper) M.2 2242 interface support NVMe SSD hardsik(PCIe gen 2 x1) Network: 1 x 2.5GbE RJ45 port 5 x giga RJ45 port USB: Use the USB Type-C (device, console) port of the UART to USB chip 1x USB 2.0 Type-A USB HOST port PCIE: M2 keyB Supported Rates PCIe gen 2 x1Can be used to connect SSD hard drives, 5G modules, etc MINI PCIESupported Rates PCIe gen 2 x1Can be used to connect WiFi module, wired network card, etc Extension: MikroBUS expansion module socket Debug: Console connected via USB-C port or 3-pin connector RTC: Support for on-board RTC real-time clock Others: Reset and user buttons Boot chooseNANDnormal Or NORReset (I2C interface) RTCBackup battery holder with CR1220 button battery (without battery) support add 802.3at/af PoE module Size: 148 x 100.5 mm Specification:B Without POE module Color: As Shown Material: PC Package Contents: 1 * Gateway Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.