A SoC which has only a Soft CPU and UART. The firmware is executed from ROM using internal blockram for SDRAM.

A "base" SoC SoC which has Soft CPU, on board memory interfaces (such as DDR or external SRAM), UART working and a few minor basic peripherals added.

Extends base with support for Ethernet.

Adds video inputs + video outputs.

Useful if you are just working on video related stuff.

SoC with extended memory testing infrastructure.

Useful for verifying and testing performance of the DDR memory.

SoC which doesn't have a Soft CPU master, only an wishbone bridge.

XXX can be uart, etherbone or pcie.

Useful for quickly developing new cores as the minimal number of components allows quick compilation of gateware.

Net SoC with only the encoder.

Useful for verifying and improving JPEG encoder.

Full HDMI2USB SoC including HDMI matrix, video capture, etc.

SoC which does HDMI video mode conversion.