* Circuit packet level replacement for the TN786B/CPP1 combination * Does not support a mezzanine board for memory expansion (no CPP1 circuit pack is used) * Provides a performance increase over the TN 786B/CPP1 combination * RISC processor at 40 MHZ includes all of the functions of the TN786B processor as well as providing an operating system base more common with R7r * Diagnostics for the TN790 are enhanced over earlier systems * Compatible with the processor interface circuit pack (TN765), the PACCON cir..