发明名称 Data output adjustment apparatus, data output adjustment method, RGMII network system and RGMII network communication path change method
摘要 A data output adjustment apparatus which adjusts an output timing when an outputting data with different transmission speed includes an input part which is provided corresponding to an external device connected with the data output adjustment apparatus, and gets data from the external device, a buffer part which is provided corresponding to the input part, and buffers the data got by the input part, and, an outputting part which instructs the output timing of the data corresponding to the transmission speed to the buffer part, and receives and outputs the data that the buffer part outputted corresponding to the instruction.
申请公布号 US8831017(B2) 申请公布日期 2014.09.09
申请号 US201213486919 申请日期 2012.06.01
申请人 NEC Access Technica, Ltd. 发明人 Nukaya Kensuke
分类号 H04L29/10;H04L12/56 主分类号 H04L29/10
代理机构 Sughrue Mion, PLLC 代理人 Sughrue Mion, PLLC
主权项 1. A data output adjustment apparatus which is configured in a normal mode and an energy-saving mode, to operate with an external device having a main control part, an energy-saving control part, and an Ethernet physics chip, the apparatus comprising: an input part which includes a main side input part configured to communicate with the main control part, an energy-saving side input part configured to communicate with the energy-saving side control part, and a PHY side input part configured to communicate with the Ethernet physics chip, and which gets data from the external device; a buffer part which includes a main side buffer part configured to communicate with the main side input part, an energy-saving side buffer part configured to communicate with the energy-saving side input part, and a PHY side buffer part configured to communicate with the PHY side input part, and which buffers the data obtained by the input part; an outputting part including a main side output part configured to communicate with the main control part, an energy-saving side output part configured to communicate with the energy-saving control part, and a PHY side output part configured to communicate with the Ethernet physics chip; and a path change part including a TX-switch and a RX-switch; wherein: in the normal mode: the main control part controls the TX-switch to enable a communication path from the main side input part to the PHY side output part via the main side buffer part; andthe main control part controls the RX-switch to enable a communication path from the PHY side input part to the main side output part via the PHY side buffer part; andin the energy-saving mode: the main control part controls the TX-switch to enable a communication path from the energy-saving side input part to the PHY side output part via the energy-saving side buffer part; andthe main control part controls the RX-switch to enable a communication path from the PHY side input part to the energy-saving side output part via the PHY side buffer part; andthe outputting part controls the timing of the outputting of the data, stored in the buffer part, based on a control signal received from the main control part, corresponding to the transmission speed of the Ethernet physics chip.
地址 Shizuoka JP