參數(shù)資料
型號： ISP1161BD
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： Full-speed Universal Serial Bus single-chip host and device controller
中文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁數(shù)： 66/127頁
文件大?。?/td> 2762K
代理商： ISP1161BD
Philips Semiconductors
ISP1161
Full-speed USB single-chip host and device controller
Product data
Rev. 01 — 3 July 2001
66 of 130
9397 750 08313
Philips Electronics N.V. 2001. All rights reserved.
Code (Hex): 11 —
read
Code (Hex): 91 —
write
13.3 HC Root Hub registers
All registers included in this partition are dedicated to the USB Root Hub, which is an
integral part of the HC although it is a functionally separate entity. The Host Controller
Driver (HCD) emulates USBD accesses to the Root Hub via a register interface. The
HCD maintains many USB-defined hub features that are not required to be supported
in hardware. For example, the Hub’s Device, Configuration, Interface, and Endpoint
Descriptors are maintained only in the HCD as well as some static fields of the Class
Descriptor. The HCD also maintains and decodes the Root Hub’s device address as
well as other trivial operations that they are better suited to software than to
hardware.
The Root Hub registers are developed to maintain the similarity of bit organization
and operation to typical hubs found in the system.
Four registers are defined as follows:
HcRhDescriptorA
HcRhDescriptorB
HcRhStatus
HcRhPortStatus[1:NDP]
Each register is read and written as a Dword. These registers are only written during
initialization to correspond with the system implementation. The HcRhDescriptorA
and HcRhDescriptorB registers should be implemented such that they are writeable
regardless of the HCs USB states. HcRhStatus and HcRhPortStatus must be
writeable during the USBOPERATIONAL state.
13.3.1
HcRhDescriptorA Register
The HcRhDescriptorA register is the first register of two describing the characteristics
of the Root Hub. Reset values are implementation-specific (IS). The descriptor length
(11), descriptor type and hub controller current (0) fields of the hub Class Descriptor
are emulated by the HCD. All other fields are located in the registers
HcRhDescriptorA and HcRhDescriptorB.
Remark:
IS denotes an implementation-specific reset value for that field.
相關(guān)PDF資料
PDF描述
ISP1161BM Full-speed Universal Serial Bus single-chip host and device controller
ISP1181ABS INDUCTOR 1.0NH +-.3NH FIXED SMD
ISP1181A Full-speed Universal Serial Bus peripheral controller
ISP1181ADGG Full-speed Universal Serial Bus peripheral controller
ISP1181B Full-speed Universal Serial Bus peripheral controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1161BM 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus single-chip host and device controller
ISP1181 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus interface device
ISP1181A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus peripheral controller
ISP1181ABS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus peripheral controller
ISP1181ABS,518 功能描述:USB 接口集成電路 USB 1.1 ADV DEVICE RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
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