A8255 Overview
s a8255 MegaCore function implementing a programmable peripheral interface adapter s Optimized for FLEX® and MAX® architectures s 24 programmable inputs/outputs s Static read/write or handshaking modes s Direct bit set/reset capability s Synchronous design s Uses approximately 194 FLEX logic elements (LEs) s Functionally based on the Intel 8255A and Harris 82C55A devices, except as noted in the “Variations &...