參數(shù)資料
型號： uPSD3234
廠商： 意法半導(dǎo)體
英文描述： Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
中文描述： 閃存可編程系統(tǒng)器件與8032微控制器內(nèi)核（嵌入高速“8032微控制器核”的閃存型可編程系統(tǒng)器）
文件頁數(shù)： 9/54頁
文件大?。?/td> 736K
代理商： UPSD3234
9/54
AN1886 - APPLICATION NOTE
Figure 3. USB Host/Device Detailed Communication Flow View
Chapters 6 to 8 of the USB specification describe the mechanical, electrical, and protocol interface defini-
tions of the USB “wire”. Chapter 9 describes the USB device programming interface that allows a USB
device to be manipulated from the host side of the wire.
Chapter 10 describes two host side software interfaces:
Host Controller Driver (HCD): The software interface between the USB Host Controller and USB
System Software. This interface allows a range of Host Controller implementations without requiring
all host software to be dependent on any particular implementation. One USB Driver can support
different Host Controllers without requiring specific knowledge of a Host Controller implementation. A
Host Controller implementer provides an HCD implementation that supports the Host Controller.
USB Driver (USBD): The interface between the USB System Software and the client software. This
interface provides clients with convenient functions for manipulating USB devices.
■
■
Endpoints Supported by μPSD32xx
A USB logical device appears to the USB system as a collection of endpoints. Endpoints are grouped into
endpoint sets that implement an interface. Interfaces are views to the function. The USB System Software
manages the device using the Default Control Pipe. Client software manages an interface using pipe bun-
dles (associated with an endpoint set). Client software requests that data be moved across the USB be-
tween a buffer on the host and an endpoint on the USB device. The Host Controller (or USB device,
depending on transfer direction) converts the data to packets to move it over the USB. The Host Controller
also coordinates when bus access is used to move the packet of data over the USB.
AI09098
USB Host
Host
Interconnect
Physical Device
Client SW
(manages an
interface)
USB System SW
(manages devices)
Host
Cont-
-roller
USB
Bus Interface
USB
Bus Interface
Pipe Bundle
to an Interface
Default Pipe
to Endpoint0
SIE
SIE
Inter-
-face
x
End-
-point
0
Function
(a
collection
of
interfaces)
USB Logical
Device
(a
collection
of
Endpoints)
USB Device
Mechanical, Electrical Protocol
Transfers
Buffers
No USB format
USB framed data
No USB format
USB framed data
Data per Endpoint
Interface-specific
USB Wire
相關(guān)PDF資料
PDF描述
uPSD3251(中文) Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的Flash可編程系統(tǒng)設(shè)備)
uPSD3251 Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的Flash可編程系統(tǒng)設(shè)備)
uPSD3253AV-24T1T Flash Programmable System Devices with 8032 Microcontroller Core
UPSD3253B Two and Three Channel Codewheels
UPSD3253BV Flash Programmable System Devices with 8032 Microcontroller Core
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPSD32348V24V6ES 制造商:ST MICRO 功能描述:*
UPSD3234A 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core
UPSD3234A-24T1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
UPSD3234A-24T1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
UPSD3234A-24T6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
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