SERIAL COMMUNICATION DEVICE AND SERIAL COMMUNICATION METHOD

摘要

A serial communication device includes a serializer configured to transmit serial data for each channel via a transmission line for the corresponding channel, and a deserializer configured to receive the serial data. The serializer includes a transmission processing circuit that creates a protocol where pieces of valid data are inserted between a start frame and an end frame for each channel. The deserializer includes buffers for the respective channels to detect the start frame of each channel, store the valid data in the corresponding buffer, set, as a to-be-processed buffer, at least one buffer that stores the valid data on a channel to be deskewed, start externally transferring data from the to-be-processed buffer when a fixed amount of the valid data is stored or when the end frame is detected, detect a boundary between the valid data and the end frame, and extract the valid data from the to-be-processed buffer.

主权项

1. A serial communication device comprising:
a serializer configured to transmit serial data for each of a plurality of channels via a transmission line for the corresponding channel; and a deserializer configured to receive the serial data, the serializer including a transmission processing circuit configured to create a protocol where a plurality of pieces of valid data are inserted between a data-transmission start frame and a data-transmission end frame for each of the channels, the deserializer including a receipt processing circuit that includes a plurality of receiving buffer circuits for the respective channels, the receipt processing circuit being configured to
detect the data-transmission start frame of each channel,store the valid data in the corresponding receiving buffer circuit,set, as a to-be-processed receiving buffer circuit, at least one of the receiving buffer circuits that stores the valid data on a channel to be deskewed,start externally transferring data from the to-be-processed receiving buffer circuit when a fixed amount of the valid data is stored or when the data-transmission end frame is detected,detect a boundary between the valid data and the data-transmission end frame, andextract the valid data from the to-be-processed receiving buffer circuit.