| 摘要 |
<p>A FIFO buffer device implements a rewind function without decreasing the data transfer rate. Input data is written into a write FIFO buffer (11) while being packeted by a packet FIFO buffer (13) and is written into a buffer memory region (21) formed in a saving memory (20). A multiplexer (15) selects the output of the write FIFO buffer (11) to be outputted in a first mode and selects packet data read out from the buffer memory region (21) in a second mode. Until a read FIFO buffer (12) comes into a full state, the first mode is selected.</p> |
