CN100468379C - 一种提高存储卡传输速度的方法 - Google Patents
一种提高存储卡传输速度的方法 Download PDFInfo
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- CN100468379C CN100468379C CNB2006100873198A CN200610087319A CN100468379C CN 100468379 C CN100468379 C CN 100468379C CN B2006100873198 A CNB2006100873198 A CN B2006100873198A CN 200610087319 A CN200610087319 A CN 200610087319A CN 100468379 C CN100468379 C CN 100468379C
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Abstract
Description
管脚 | 名称 | 类型 | SD描述 |
1 | CD/DAT3 | 输入输出接口 | 卡检测或数据线第3位 |
2 | CMD | 输入输出接口 | 命令或响应 |
3 | VSS1 | 电源供应 | 电源供应地 |
4 | VDD | 电源供应 | 电源供应 |
5 | CLK | 输入接口 | 时钟 |
6 | VSS2 | 电源供应 | 电源供应地 |
7 | DATO | 输入输出接口 | 数据线第0位 |
8 | DAT1 | 输入输出接口 | 数据线第1位 |
9 | DAT2 | 输入输出接口 | 数据线第2位 |
管脚 | 名称 | 类型 | SD描述 |
1 | DAT3 | 输入输出接口 | 数据线第3位 |
2 | CMD | 输入输出接口 | 命令或响应 |
3 | VSS1 | 电源供应 | 电源供应地 |
4 | VDD | 电源供应 | 电源供应 |
5 | CLK | 输入接口 | 时钟 |
6 | VSS2 | 电源供应 | 电源供应地 |
7 | DAT0 | 输入输出接口 | 数据线第0位 |
8 | DAT1 | 输入输出接口 | 数据线第1位 |
9 | DAT2 | 输入输出接口 | 数据线第2位 |
10 | DAT4 | 输入输出接口 | 数据线第4位 |
11 | DAT5 | 输入输出接口 | 数据线第5位 |
12 | DAT6 | 输入输出接口 | 数据线第6位 |
13 | DAT7 | 输入输出接口 | 数据线第7位 |
比特位置 | 47 | 46 | [45:40] | [39:8] | [7:1] | 0 |
宽度(比特) | 1 | 1 | 6 | 32 | 7 | 1 |
值描述 | ‘0’起始比特 | ‘1’传输比特 | X命令索引 | X参数 | XCRC7 | ‘1’结束比特 |
CMD索引 | 类型 | 参数 | 响应 | 缩写 | 命令描述 |
CMD6 | ac | [31:26]置为0[25:24]访问[23:16]索引[15:8]值[7:3]置为0[2:0]Cmd集 | R1b | SWITCH | 改变所选择的卡的操作模式或修改EXT_CSD寄存器 |
CMD7 | ac | [31:16]RCA[15:0]填充比特 | R1b<sup>1</sup> | SELECT/DESELECT_CARD | 在旁置和传输状态之间或者编程和断开连接状态之间锁定卡的命令。在这两种情况下卡被自己的相对地址被选中,任何其它 |
地址可取消选定,地址0可取消选定。 | |||||
CMD9 | ac | [31:16]RCA[15:0]填充比特 | R2 | SEND_CSD | 寻址卡在CMD线上发送特定卡数据(CSD) |
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100873198A CN100468379C (zh) | 2006-06-07 | 2006-06-07 | 一种提高存储卡传输速度的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2006100873198A CN100468379C (zh) | 2006-06-07 | 2006-06-07 | 一种提高存储卡传输速度的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101086723A CN101086723A (zh) | 2007-12-12 |
CN100468379C true CN100468379C (zh) | 2009-03-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB2006100873198A Expired - Fee Related CN100468379C (zh) | 2006-06-07 | 2006-06-07 | 一种提高存储卡传输速度的方法 |
Country Status (1)
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CN (1) | CN100468379C (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101603674B1 (ko) * | 2009-12-14 | 2016-03-16 | 삼성전자주식회사 | 긴급 데이터 전송 방법 및 장치 |
US8738827B2 (en) * | 2011-07-18 | 2014-05-27 | O2Micro International Ltd. | Circuits and methods for providing communication between a memory card and a host device |
CN103594122B (zh) * | 2013-11-13 | 2016-08-17 | 福建联迪商用设备有限公司 | 一种用于实现存储卡接口测试的逻辑替代方法和电路 |
CN105787408B (zh) * | 2016-02-03 | 2018-04-03 | 飞天诚信科技股份有限公司 | 一种支持高速数据通讯的读卡器及其工作方法 |
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2006
- 2006-06-07 CN CNB2006100873198A patent/CN100468379C/zh not_active Expired - Fee Related
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Publication number | Publication date |
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CN101086723A (zh) | 2007-12-12 |
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Address after: No. two, 6 North Street, Haidian District, Beijing, Haidian Patentee after: Putian IT Tech Inst Co., Ltd. Address before: No. two, 2 street, Beijing Patentee before: Putian Inst. of Information Technology |
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Owner name: CHINA POTEVIO CO., LTD. Free format text: FORMER OWNER: PUTIAN IT TECH INST CO., LTD. Effective date: 20130917 |
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