Utopia connection device of set-top box when SAR layer is non-Utopia device

摘要

The present invention is designed to support utopia (UTOPIA) access according to ATM standards between a set-top box (STB) and a partition and assembly (SAR) layer and a physical layer to provide cutting-edge communication services such as video on demand (VOD). It relates to a UTOPIA connection device.;The apparatus of the present invention includes a physical layer chip 202 for providing signal lines according to a predetermined utopia standard; A SAR transmitter 220 for providing a transmission data bus (FFD [7: 0]), a read clock (RDCLK), a lead enable (RDEN), and a sellable (/ CELAVL) signal line for a non-utopia connection; FFMT, FFRD [0], Selvable (CLAV), Receive Data Bus 16 (FFD [16]), Receive Data Bus (FFD [7: 0) A SAR receiver 218 for providing a signal line; And a utopian interface controller 204, which can easily connect a non-utopia device to a utopian device by providing signals according to the utopian standard when either one fails to provide a signal according to the utopian standard.