Linux MTD介绍: MTD(memory TECHNOLOGY device内存技术设备)是用于访问memory设备(ROM、flash)的Linux的子系 统。MTD的主要目的是为了使新的memory设备的驱动更加简单,为此它在硬件和上层之间提供了一个 抽象的接口。MTD的所有源代码在/drivers/mtd子目录下。我将CFI接口的MTD设备分为四层(从设备节 点直到底层硬件驱动),这四层从上到下依次是:设备节点、MTD设备层、MTD原始设备层和硬件驱 动层。 根文件系统 文件系统 字符设备节点 MTD字符设备 MTD块设备 MTD原始设备 FLASH硬件驱动 块 重点是mtd的定义, 以及为什么要有mtd mtd设备的分层
标签: memory MTD Linux TECHNOLOGY
上传时间: 2013-12-27
上传用户:helmos
descript the key TECHNOLOGY of mmu of linux kernel
标签: TECHNOLOGY descript kernel linux
上传时间: 2016-09-07
上传用户:大三三
IEEE 802.11a-1999 (8802-11:1999/Amd 1:2000(E)), IEEE Standard for Information TECHNOLOGY—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications—Amendment 1: High-speed Physical Layer in the 5 GHz band
标签: IEEE 1999 Information Telecommuni
上传时间: 2013-12-24
上传用户:hjshhyy
802.11b-1999/Cor1-2001, IEEE Standard for Information TECHNOLOGY—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications—Amendment 2: Higher-speed Physical Layer (PHY) extension in the 2.4 GHz band—Corrigendum1
标签: Telecommunications Information information TECHNOLOGY
上传时间: 2013-12-10
上传用户:gxf2016
IEEE 802.11d-2001, Amendment to IEEE 802.11-1999, (ISO/IEC 8802-11) Information TECHNOLOGY--Telecommunications and information exchange between systems--Local and metropolitan area networks--Specific requirements--Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Specification for Operation in Additional Regulartory Domains
标签: 802.11 IEEE Information TECHNOLOGY
上传时间: 2014-01-21
上传用户:坏天使kk
IEEE 802.11e-2005, IEEE Standard for Information TECHNOLOGY—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements
标签: Telecommunications IEEE Information information
上传时间: 2016-10-02
上传用户:rishian
IEEE 802.11g-2003 IEEE Standard for Information TECHNOLOGY—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications—Amendment 4: Further Higher-Speed Physical Layer Extension in the 2.4 GHz Band
标签: Telecommunications IEEE Information information
上传时间: 2016-10-02
上传用户:cx111111
IEEE 802.11h-2003 IEEE Standard for Information TECHNOLOGY—Telecommunications and Information Exchange Between Systems—LAN/MAN Specific Requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Spectrum and Transmit Power Management Extensions in the 5GHz band in Europe
标签: Information Telecommunications IEEE TECHNOLOGY
上传时间: 2016-10-02
上传用户:lnnn30
IEEE 802.11j-2004 IEEE Standard for Information TECHNOLOGY—Telecommunications and information exchange between systems--Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications—Amendment 7: 4.9 GHz–5 GHz Operation in Japan
标签: Telecommunications IEEE Information information
上传时间: 2014-01-17
上传用户:asasasas
是英文 “ Surface mount TECHNOLOGY ”的缩写。即表面安装技术,这是一种较传统的安装方式。其优点是可靠性高,缺点是体积大,成本高,限制 LCM 的小型化。 是英文 “ Chip On Board ”的缩写。即芯片被邦定(Bonding)在PCB上,由于IC制造商在LCD控制及相关芯片的生产上正在减小QFP( SMT 的一种)封装的产量,因此,在今后的产品中传统的 SMT 方式将被逐步取代。
标签: TECHNOLOGY Surface mount 英文
上传时间: 2016-10-08
上传用户:nairui21