InterChip USB

Abstract: Disclosed herein is a system for monitoring high speed interchip (HSIC) universal serial bus (USB) signals in a device comprising a USB controller (2) configured to output first USB transceiver macro-cell (UTMI+) signals, an HSIC PHY transceiver (16) configured to receive the first UTMI+ signals from the USB controller and to convert and transmit the received first UTMI+ signals as first HSIC signals, and is further configured to receive second HSIC signals and transmit them as second UTMI+ signals to the USB controller, a UTMI+ conversion block configured to receive the first and second UTMI+ signals and to transform the received first and second UTMI+ signals to corresponding first and second ULPI signals, and transmit the first and second ULPI signals, the first and second ULPI signals being equivalent to the first and second HSIC signals, and a ULPI PHY transceiver (6) configured to receive the first and second ULPI signals and transmit corresponding first and second USB signals.