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Rate Adaptation for Support of Full-Speed USB Transactions Over a High-Speed USB Interface
Rate Adaptation for Support of Full-Speed USB Transactions Over a High-Speed USB Interface
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机译:速率适配,可支持高速USB接口上的全速USB事务
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摘要
A USB communications interface (USBCI) may enable communication between a high-speed USB device, e.g. a High-Speed-Inter-Chip (HSIC) USB device, and a non high-speed USB host, e.g. a full-speed USB host. The USBCI may receive first data from the USB host via a non high-speed transaction, and buffer the first data. The USBCI may also initiate a high-speed transaction corresponding to the non high-speed transaction to the USB device, and transmit at least a portion of the buffered first data to the USB device via the high-speed transaction. The USBCI may subsequently receive second data from the USB device via the high-speed transaction, and buffer the second data. The USBCI may also transmit at least a portion of the buffered second data to the USB host via the non high-speed transaction, and complete the non high-speed transaction upon the high-speed transaction completing.
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