发明名称 |
USB-attached-SCSI flash-memory system with additional command, status, and control pipes to a smart-storage switch |
摘要 |
An electronic flash-memory card has additional pipes for commands and status messages so that data pipes are not clogged with commands and status messages, allowing for a higher data throughput. The command and status pipes are activated when a UAS/BOT detector detects that a host is using a USB-Attached-SCSI (UAS) mode rather than a Bulk-Only-Transfer (BOT) mode. The host can send additional commands and data without waiting for completion of a prior command when operating in UAS mode but not while operating in BOT mode. A command queue (CQ) in the device re-orders commands for accessing flash memory and merges data in a RAM buffer. Smaller 1 KB USB packets in the data pipes are merged into larger 8 KB payloads in the RAM buffer, allowing for more efficient flash access. |
申请公布号 |
US8180931(B2) |
申请公布日期 |
2012.05.15 |
申请号 |
US20090651334 |
申请日期 |
2009.12.31 |
申请人 |
LEE CHARLES C.;YU FRANK;MA ABRAHAM C.;SUPER TALENT ELECTRONICS, INC. |
发明人 |
LEE CHARLES C.;YU FRANK;MA ABRAHAM C. |
分类号 |
G06F3/00;G06F5/00 |
主分类号 |
G06F3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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