




免费预览已结束,剩余31页可下载查看
下载本文档
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
sd memory card specificationspart 2 file system specificationversion 1.0february 2000sd groupmatsushita electric industrial co., ltd. (mei)sandisk corporationtoshiba corporationconfidential standard microsystems standard microsystemssd memory card specifications / part 2. file system specification version 1.0conditions for publicationpublisher and copyright holdersd group(mei, sandisk, toshiba)confidentialitythis document shall be treated as confidential under the non disclosure agreement which hasbeen signed by the obtainer. reproduction in whole or in part is prohibited without prior writtenpermission of sd group.exemptionnone will be liable for any damages from use of this document.do not copy 2000 sd group (mei, sandisk, toshiba).fs-0confidential standard microsystemssd memory card specifications / part 2. file system specification version 1.0this page is intentionally left blank.do not copy 2000 sd group (mei, sandisk, toshiba).confidential standard microsystemssd memory card specifications / part 2. file system specification version 1.0 part2 file system specification1. general . fs-11.1 scope . 11.2 normative references . 21.3 definitions. 31.3.1 byte. 31.3.2 defective sector . 31.3.3 descriptor . 31.3.4 file. 31.3.5 sector / block. 31.3.6 partition. 31.3.7 user. 31.3.8 volume. 31.4 notations . 41.4.1 numerical notation . 41.4.2 arithmetic notation. 41.4.3 character strings. 41.4.4 list of acronyms . 41.5 data types . 51.5.1 numerical values in one-byte fields. 51.5.2 numerical values in two-byte fields. 51.5.3 numerical values in four-byte fields. 51.5.4 pairs of 12-bit integers . 52. volume structure. fs-72.1 arrangement of the data area. 82.1.1 physical address . 82.1.2 physical sector number . 82.1.3 logical sector number . 82.1.4 partition area and regular area . 82.2 arrangement of the user area . 92.2.1 clusters. 92.2.2 status of clusters . 92.3 arrangement of the partition area . 102.4 arrangement of the system area. 122.4.1 system area. 122.4.2 partition boot sector . 122.4.3 file allocation table (fat). 122.4.4 root directory. 12do not copy 2000 sd group (mei, sandisk, toshiba).fs-iconfidential standard microsystemssd memory card specifications / part 2. file system specification version 1.03. file structure .fs-133.1 partition boot sector . 133.2 file allocation table. 173.3 file directories. 183.3.1 characteristics . 183.3.2 directory entry types . 183.3.3 general definition of directory entry fields. 183.4 user area . 20do not copy 2000 sd group (mei, sandisk, toshiba).fs-iiconfidential standard microsystemssd memory card specifications / part 2. file system specification version 1.0annexannex.fs-21annex a: file system layout. 21annex b: chs recommendation . 22annex c: sectors per cluster and boundary unit recommendation for data area . 23annex d: format parameter computations . 25do not copy 2000 sd group (mei, sandisk, toshiba).fs-iiiconfidential standard microsystemssd memory card specifications / part 2. file system specification version 1.0list of figuresfigure 2-1 : example of volume structure for data area. fs-7figure a-1 : example of file system layout . 21do not copy 2000 sd group (mei, sandisk, toshiba).fs-ivconfidential standard microsystemssd memory card specifications / part 2. file system specification version 1.0list of tablestable 2.3-1 : master boot record and partition table .fs-10table 2.3-2 : partition table . 10table 3.1-1 : fdc descriptor. 13table 3.1-2 : extended fdc descriptor. 13table 3.2-1 : fat entry value. 17table 3.3.3-1 : directory entry field. 18table b-1 : chs recommendation. 22table b-2 : example of partition table . 22table c-1 : sectors per cluster and boundary unit recommendation (data area) . 23table c-2 : maximum data area size and format parameters. 23table d-1 : extended fdc descriptor (regular area). 26do not copy 2000 sd group (mei, sandisk, toshiba).fs-vconfidential standard microsystemssd memory card specifications / part 2. file system specification version 1.0this page is intentionally left blank.do not copy 2000 sd group (mei, sandisk, toshiba).fs-viconfidential standard microsystemssd memory card specifications / part 2. file system specification version 1.01. general1.1 scope1. general1.1 scopethis part specifies the volume structure and file structure of the sd memory card (secure digital memorycard). the sd memory card file system that defines the logical structure uses fat file system based oniso/iec 9293 standard.it also supports two areas: one for the data area that user can access without mutual authentication andone for the protected area that user can access after mutual authentication.do not copy 2000 sd group (mei, sandisk, toshiba).fs-1confidential standard microsystemssd memory card specifications / part 2. file system specification version 1.01.2 normative references1)iso/iec646:1991information technology - iso 7-bit code character set for information interchange2)iso/iec9293:19941. general1.2 normative referencesinformation technology - volume and file structure of disk cartridges for information interchangedo not copy 2000 sd group (mei, sandisk, toshiba).fs-2confidential standard microsystemssd memory card specifications / part 2. file system specification version 1.01.3 definitions1.3.1 bytea string of binary digits operated upon as a unit.1.3.2 defective sectora sector that cannot be read or written.1.3.3 descriptora recorded structure containing information about the volume or a file.1.3.4 filea named collection of information.1.3.5 sector / blocka unit of data that can be accessed independently of other units on the sd memory card.1.3.6 partitionan extent of sectors within a volume.1.3.7 user1. general1.3 definitionsa person or other entity that causes the invocation of the services provided by an implementation.1.3.8 volumea sector address space as specified in the relevant standard for recording.do not copy 2000 sd group (mei, sandisk, toshiba).fs-3confidential standard microsystemssd memory card specifications / part 2. file system specification version 1.01.4 notations1.4.1 numerical notationnumbers in decimal notation are represented by decimal digits, namely 0 to 9.1. general1.4 notationsnumbers in hexadecimal notation are represented as a sequence of one or more hexadecimal digits namely 0to 9 and a to f, prefixed by “0x”.zero represents a single bit with the value 0.1.4.2 arithmetic notationthe notation ip(x) shall mean the integer part of x.the notation ceil(x) shall mean the minimum integer that is greater than x.1.4.3 character stringsa value for a sequence of bytes may be specified by a quoted sequence of characters, encoded according tothe iso/iec 646 standard.1.4.4 list of acronymsbp : byte position within a certain field, starting with 0 from the first byte of the field.fat : file allocation table.fdc : flexible disk cartridge.do not copy 2000 sd group (mei, sandisk, toshiba).fs-4confidential standard microsystemssd memory card specifications / part 2. file system specification version 1.01.5 data types1.5.1 numerical values in one-byte fieldsa numerical value in a one-byte field shall be recorded as an 8-bit number in one-byte field.1.5.2 numerical values in two-byte fields1. general1.5 data typesa numerical value in a two-byte field shall be recorded in the little endian representation. it shall be recordedaccording to iso/iec 9293.1.5.3 numerical values in four-byte fieldsa numerical value in a four-byte field shall be recorded in the little endian representation. it shall be recordedaccording to iso/iec 9293.1.5.4 pairs of 12-bit integersa pair of 12-bit numbers shall be recorded in three-byte field according to iso/iec 9293.do not copy 2000 sd group (mei, sandisk, toshiba).fs-5confidential standard microsystemssd memory card specifications / part 2. file system specification version 1.0this page is intentionally left blank.do not copy 2000 sd group (mei, sandisk, toshiba).fs-61. generalconfidential standard microsystemssd memory card specifications / part 2. file system specification version 1.02. volume structure2. volume structurethe vol
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 大数据技术推动金融行业大规模数据整合与分析
- 储能设备可靠性与安全性技术保障
- 高职院校心理育人模式的跨学科协同研究与实践
- 住房装修合同(标准版)
- Dioctanoyl-PI-3-4-P2-sodium-生命科学试剂-MCE
- DF-006-生命科学试剂-MCE
- Deferasirox-CoA-Deferasirox-coenzyme-A-生命科学试剂-MCE
- 餐饮住宿场所自然灾害应急预案
- 电力中断应急预案(工厂)
- 2025年浙江建设工程质量检测人员上岗考试(建筑主体结构)练习题及答案
- 中药药剂员职业考核试卷及答案
- 2025年脚手架租赁合同3篇
- 2025年下半年安徽省港航集团有限公司所属企业社会公开招聘22名考试参考试题及答案解析
- 2025年度企事业单位办公家具采购合同
- 2025福建厦门市公安局同安分局招聘警务辅助人员50人笔试备考试题及答案解析
- 巴彦淖尔教师招考试题及答案
- 2025年四川省建筑安全员A证模拟试题(及答案)
- 2025国家统计局济宁调查队城镇公益性岗位招聘3人备考题库及答案解析
- GB/T 5463.3-2025非金属矿产品词汇第3部分:石膏
- 快手运营课程培训课件
- 2025至2030中国漂白粉行业发展研究与产业战略规划分析评估报告
评论
0/150
提交评论