Abstract
This paper presents a high level of integration for parallel source-synchronous interfaces using Asymmetric Crosstalk Harnessed Signaling (ACHS) on 3D routing environments. ACHS is shown to successfully overcome the high noise susceptibility related to the common encoding eigenmode present in the original Crosstalk Harnessed Signaling (CHS) scheme, with a small routing overhead. In this study, a bus design case is presented where multiple channels are wired together in a 3D routing environment by a multi-stripline stackup. CHS and ACHS performances are compared using the same routing realestate availability; ACHS shows a far superior performance due to the absence of the common encoding mode. The best performing eigenmodes are applied to the strobe encoding to achieve very good integrity for this critical signal.
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