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黑猫带你学UFS协议第4篇:UFS协议栈详解
2022-07-06 06:03:00 【黑猫学长呀】
本文依据UFS3.1 JEDEC协议及个人工作经验整理而成,如有错误请留言。
文章为个人辛苦整理,付费内容,禁止私自转载。
文章所在专栏:《黑猫带你学:UFS协议详解》
1 UFS协议栈框架
UFS定义了一个完整的协议栈。从上到下,依次为应用层、传输层、数据链路层和物理层。UFS使用MIPI(Mobile Industry Processor Interface ,移动产业处理器接口)联盟的UniPro作为数据链路层和MIPI的M-PHY作为物理层,两者合起来称之为互连层(UFS InterConnect Layer)。
如图所示,为UFS协议栈框图:
注意:此版本的标准假定只有一个设备连接到一个UFS端口。更多的拓扑结构将在未来的规范版本中定义。
Application Layer和UTP:遵守SCSI规范
M-PHY和UniPro:遵守MIPI标准
2 应用层(UAP)
应用层包含:ufs命令集(U
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