1. The core board for Primer20K uses GOWIN Semiconductor GW2A-LV18PG25687 as the main chip, which has internal resources, such as high-performance DSP, high-speed LVDS interface and BSRAM memory resources. On-board peripheral components such as DDR and , users can this core board to quickly develop and verify projects. The above features make the 20K core board suitable for high-speed and low-cost applications2. The for Primer20 K Lite kit includes a core board and a Lite backplane. The Lite backplane leads out of the IO ports through pin headers and PMOD interfaces. Users can easily other peripheral modules or circuits for secondary development.3. The for Primer20 K Dock kit includes the core board and the Dock bottom plate. The Dock backplane has a wealth of peripheral resources onboard, such as USB-TAG&UART circuit, Ethernet PHY and network port connectors, USB2.0PHY, - TX connector, Audio output circuit and headphone connector, RGB screen connector, Camera camera connector.Specification:Memory: 1G bits DDR3Logical Units (LUT4): 20736Register (FF): 15552Distributed static random access memory S-SRAM (bits): 41472Block static random access memory B-SRAM (bits): 828KThe number of block static random access memory BSRAM (pcs): 46High-performance DSP module: support 9x9, 18x18, 36x36bit multiplication and 54bit accumulatorMultiplier (18x18 Multiplier): 48SPI FLASH: 32M-bitFlexible PLL resources: 4 Phase Locked Loops (PLLs)Display screen interface: SPI screen interfaceIO: Support 4mA, 8mA, 16mA, 24mA and other drive capabilities; Bus , pull-up/pull- resistors and Open Drain output for each I/OConnector: TF card socket, 8P 1.0mm female socket (lead out TAG interface)DRAM: Onboard 128 MB DDR3 chipMaterial: PCB+Metalcolour: blackPackage Contents:1 x 20K core board1 x 20K bottom plate1 x 8P 1.0mm to 2.54mm terminal wire1 x RV debugger plus module1 x USB cableOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.