MicroBlaze Tutorial Creating a Simple Embedded System and …

MicroBlaze also supports up to 8 Fast Simplex Link (FSL) ports, each with one master and one slave FSL interface. The FSL is a simple, yet powerful, point-to-point interface that connects user-developed custom hardware accelerators (co-processors) to the MicroBlaze processor pipeline to accelerate time-critical algorithms.

  Microblaze