System for reading and writing information

Abstract From the Canadian patent

Abstract of the Disclosure, First binary bits are read synchronously relative to clock signals (e.g. 125 MHz) from first memory positions and second binary bits are read from, or written in second memory, positions asynchronously relative to the clock signals without affecting the reading of the first memory bits. For synchronously reading the first bits, a plurality of channels are sequentially activated at a suitable frequency (e.g. 25 megahertz). Information from pairs of data lines are introduced into a pair of buses at the clock frequency. The information in the buses is sampled upon the occurrence of the first polarity in synchronizing signals having frequency (e.g. 62.5 MH3) derived …