An asynchronous wrapper with novel handshake circuits for GALS systems

In this paper, we propose an asynchronous wrapper with novel handshake circuits for data communication to be used in GALS systems. The handshake circuits include two communication ports and a local clock controller. We present two approaches for the implementation of communication ports; one with pure standard cells and the other with Muller C elements. The detailed design methodology is given and the circuits are validated with VHDL and circuits simulation in standard CMOS technology.