A Mesochronous Technique for Communication in Network on Chips

In this paper, we propose a mesochronous scheme for communication over serial buses in network on chips (NoC). The technique, which removes metastability errors in mesochronous communications, makes use of only one strobe line with the bus. The strobe line toggles once with every frame of the data. In the suggested method, the frequencies of the transmitter and the receiver are independent with some tolerable difference. The results of HSPICE simulations in a 0.13 mum standard CMOS technology show a 3.65 Gbps as the maximum transmission bandwidth of the technique. The idea can be applied to parallel buses without any change in the control circuit.