Tang features Anlogic EG4S20 FPGA – unrelated to Amlogic – which run a RISC-V softcore,  and all is packaged in a small small form factor.

Specifications:

• Core unit: Anlogic Technologies EG4S20
• Logical unit: 20K (LUT4/LUT5 hybrid architecture)
• SRAM: About 130KB
• SDRAM: Built-in 32bit bit width 64MBit
• Flash: FPGA configuration Flash, 8Mbit User Flash, nor/nand optional
• Download and debug: Onboard FPGA JTAG Download Debugger, RV debugger can debug hummingbird core
• Interface:

- FPC40P socket, can be connected to RGB LCD, VGA adapter board
- FPC24P socket, can be connected to DVP camera, high speed ADC module
- Resistive touch screen controller for I2C interface, used with RGB LCD

• Pin and lead:

- The adjacent pins LVDS are drawn in the same length, leading out 8 GCLKs, and all 8 ADCs are taken out.
- Double row pin spacing 900mil, compatible with breadboard development
- Half hole leads to an extra 40 IO, and the whole board leads to 130+ IO

• Electrical characteristics:

- Micro USB 5V power supply; 2.54mm pin
- 3.3V~5V power supply; 1.27mm stamp hole power supply
- 3-channel DCDC power supply chip, stable and efficient power supply
- independent adjustment of Bank0 IO level

Software function

• Integrate, download, debug features with TD IDE
• IDE has a rich IP core
• Support hummingbird risc-v soft core 

Target application scenario

• High-speed communication interface interconnection
• Learning, debugging, research of soft cores such as RISC-V
• Machine vision processing
• Parallel computing acceleration