Intel Corporation
VIRTUAL PHYSICAL CIRCUIT FOR ON-CHIP COMMUNICATION

Abstract:

Techniques are provided for on-chip communication. A system implementing the techniques according to an embodiment includes a first virtual physical (vPhy) circuit couplable to a host through a vPhy interface and a second vPhy circuit couplable to a device, on the same chip as the host, through another vPhy interface. The system further includes a vPhy-to-vPhy interface between the vPhy circuits which includes signal lines to transmit a first data toggle signal from the first vPhy circuit to the second vPhy circuit, and a second data toggle signal from the second vPhy circuit to the first vPhy circuit. The first vPhy circuit is configured to generate the first data toggle signal based on a signal received from the host for transmission to the device. The second vPhy circuit is configured to generate the second data toggle signal based on signal received from the device for transmission to the host.