The ITL buffer is a Ping-Pong structured FIFO buffer RAM that is used to keep the payload data and their PTD header for Isochronous transfers.<br />The ATL buffer is a non Ping-Pong structured FIFO buffer RAM that is used for the other three types of transfers.<br /><br />什么是Ping-Pong structured 和non Ping-Pong structured ?
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