This is a tiny, customizable microcontroller core, available in 8-bit data widths, hence the name S8.
The core is usable as is, or we can customize it to your precise needs. E.g. we can add a multiplier, tailor the memory interfaces to your embedded memory of choice, tailor the debug-port,… This guarantees the smallest chip area. Assembler and debugger tools are provided. The learning curve is very short.
Typical use case: in a mixed-signal ASIC, to calibrate, configure and control the analog macro(s).