==Technical description==
* 6 audio channels sound with programmable frequency. (stereo line out and speaker mono mix in)
* 4 counter/timer channels for programmable interrupt. (including NMI)
* IM2 vectorized interrupt support
* Raster lines interrupt support
* CRTC hardware CURSOR
The board main feature is the Zilog Z80 Counter Timer Circuit, the best friend of the Zilog Z80 CPU.
The CTC is linked to the CPU to allow it to manage vectorized interrupt (IM2) and handling triggered events.