| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a circuit scale of a frame mapping device. <P>SOLUTION: The frame mapping device for mapping a plurality of low-speed signal transfer frames into a high-speed signal transfer frame is provided. The frame mapping device includes: as a minimum unit of the low-speed signal transfer frames defined as one channel, buffers provided as many as the number of maximum signal channels capable of being multiplexed into the high-speed signal transfer frame, for buffering the plurality of low-speed signal transfer frames supplied thereto; determination units provided as many as the number of maximum signal channels, for determining frequency adjustment information of the low-speed signal transfer frames; a barrel shifter to which signals output from the buffers of the number of maximum signal channels are supplied; and a control unit for controlling the barrel shifter in accordance with external settings for the respective plurality of low-speed signal transfer frames and the determination result of the determination unit, so as to map the plurality of low-speed signal transfer frames into the high-speed signal transfer frame. <P>COPYRIGHT: (C)2013,JPO&INPIT |
