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7. OPERATIONAL REGISTERS
The Host Controller (HC) contains a set of on-chip operational registers which are mapped into a noncacheable portion of the system addressable space . These registers are used... -
7.1.2 HcControl Register
CBSR 控制/批量服务比率（CBSR）寄存器 PLE (PeriodicListEnable) IE (IsochronousEnable) CLE (ControlListEnable) BLE (BulkListEnable) HCFS (HostControllerFunctionalState) bit[8] IR (Interrupt... -
7.1.1 HcRevision Register
REV REV 复位值：10h只读 RevisionThis read-only field contains the BCD representation of the version of the HCI specification that is implemented by this HC. For example, a value o... -
006_分析Hello案例
<!DOCTYPE html> <html > <head > <meta charset ="UTF-8" /> <title > 初识Vue</title > <!-- 引入Vue --> <!-- 引入 Vue 的同时，就会引入一个 Vue构造函数 --> ... -
005_Hello小案例
源码 源码 <!DOCTYPE html> <html > <head > <meta charset ="UTF-8" /> <title > 初识Vue</title > <!-- 引入Vue --> <!-- 引入 Vue 的同时，就会引入一个 Vue构造函... -
11.15 Descriptors
Hub descriptors are derived from the general USB device framework. Hub descriptors define a hub device and the ports on that hub. The host accesses hub descriptors through the hub... -
11.15.2.1 Hub Descriptor
表 11-8. 集线器描述符 偏移量 字段 大小 描述 0 bDescLength 1 此描述符的总字节数（包含本字节） 1 bDescriptorType 1 描述符类型，值：29H 表示集线器描述符 2 bNbrPorts 1 本集线器支持的下行端口数量 3 wHubCharacterist... -
11 USB HUB 集线器规范
Chapter 11 Hub Specification第 11 章 集线器规范 This chapter describes the architectural requirements for the USB hub. It contains a description of the two principal sub-blocks: the Hub... -
9.6 Standard USB Descriptor Definitions
9.6 Standard USB Descriptor Definitions The standard descriptors defined in this specification may only be modified or extended by revision of the Universal Serial Bus Specifica...