 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
USB3503 数据表(PDF) 43 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
USB3503 数据表(HTML) 43 Page - Microchip Technology |
|
|
43 / 73 page  2011-2015 Microchip Technology Inc. DS00001584B-page 43 USB3503 7.3.3 INTERFACE DESCRIPTOR (SINGLE-TT) The following table provides interface descriptor values for High-Speed Single-TT operation. 7.3.4 ENDPOINT DESCRIPTOR (SINGLE-TT) The following table provides endpoint descriptor values for Single-TT operation. 8 MaxPower 1 user Maximum Power Consumption of the Hub from VBUS when fully operational. This value includes all support circuitry associated with the hub (including an attached “embedded” peripheral if hub is part of a compound device), and is in 2mA increments. The Hub supports Self-Powered and Bus-Powered operation. The SELF_BUS_PWR bit (CONFIG_BYTE_1) is used to determine which of the values below are reported. The value reported to the host must coincide with the current operating mode, and will be determined by the following rules. The value that is reported to the host will be: ‘MAX_PWR_BP’ if SELF_BUS_PWR = ‘0’ ‘MAX_PWR_SP’ if SELF_BUS_PWR = ‘1’ In all cases the reported value is sourced from the MAX POWER data field (for Self or Bus power) that was loaded by Internal Default, or serial port configuration. TABLE 7-7: INTERFACE DESCRIPTOR (HIGH-SPEED, SINGLE-TT) Offset Field Size Value Description 0 Length 1 09h Size of this Descriptor. 1 DescriptorType 1 04h Interface Descriptor Type. 2 InterfaceNumber 1 00h Number of this interface. 3 AlternateSetting 1 00h Value used to select this alternate setting for the interface. 4 NumEndpoints 1 01h Number of endpoints used by this interface (not including endpoint 0). 5 InterfaceClass 1 09h Hub class code. 6 InterfaceSubclass 1 00h Subclass code 7 InterfaceProtocol 1 01h Single-TT. 8 Interface 1 00h Index of the string descriptor describing this interface (strings not supported). TABLE 7-8: ENDPOINT DESCRIPTOR (FOR STATUS CHANGE ENDPOINT, SINGLE-TT) Offset Field Size Value Description 0 Length 1 07h Size of this Descriptor. 1 DescriptorType 1 05h Endpoint Descriptor Type. 2 EndpointAddress 1 81h The address of the endpoint on the USB device. 3 Attributes 1 03h Describes the endpoint’s attributes. (interrupt only, no synchronization, data endpoint). 4 MaxPacketSize 2 0001h Maximum packet size for this endpoint. 6 Interval 1 0Ch Interval for polling endpoint for data transfers (Maximum Possible). TABLE 7-6: CONFIGURATION DESCRIPTOR (HIGH-SPEED) (CONTINUED) Offset Field Size Value Description |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
