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參數(shù)資料
| 型號： | AT43301-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 總線控制器 |
| 英文描述： | Low-cost USB Hub Controller |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP32 |
| 封裝： | 7 X 7 MM, 1.40 MM THICKNESS, 0.80 MM PITCH, PLASTIC, MS-026BBA, LQFP-32 |
| 文件頁數(shù)： | 9/27頁 |
| 文件大小： | 206K |
| 代理商： | AT43301-AC |
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9
1137J–USB–01/06
AT43301
2.6
Hub Controller
The Hub Controller of the AT43301 provides the mechanism for the host to enumerate the hub
and the AT43301 to provide the host with its configuration information. It also provides a mecha-
nism for the host to monitor and control the downstream ports.
The Hub Controller supports two endpoints, Endpoint0 and Endpoint1.
The Hub Controller maintains a status register, Controller Status Register, which reflects the
AT43301's current settings. At power up, all bits in this register will be set to 0’s.
2.6.1
Endpoint 0
Endpoint 0 is the AT43301’s default endpoint used for enumeration of the hub and exchange of
configuration information and requests between the host and the AT43301. Endpoint 0 supports
control transfers.
The Hub Controller supports the following descriptors through Endpoint 0: Device Descriptor,
Configuration Descriptor, Interface Descriptor, Endpoint Descriptor, and Hub Descriptor. These
descriptors are described in detail elsewhere in this document. Standard USB Device Requests
and class-specific Hub Requests are also supported through Endpoint 0. There is no endpoint
descriptor for Endpoint0.
2.6.2
Endpoint 1
Endpoint1 is used by the Hub Controller to send status change information to the host. This end-
point supports interrupt transfers.
The Hub Controller samples the changes at the end of every frame at time marker EOF2 in prep-
aration for a potential data transfer in the subsequent frame. The sampled information is stored
in a byte wide register, the Status Change Register, using a bitmap scheme.
Table 2-1.
Controller Status Register
Bit
Function
Value
Description
0
Hub configuration status
0
1
Set to 0 or 1 by a Set_Configuration Request
Hub is not currently configured
Hub is currently configured
1
Hub remote wakeup status
0
1
Set to 0 or 1 by ClearFeature or SetFeature request.
Default value is 0.
Hub is currently not enabled to request remote wakeup
Hub is currently enabled to request remote wakeup
2
Endpoint0 STALL status
0
1
Endpoint0 is not stalled
Endpoint0 is stalled
3
Endpoint1 STALL status
0
1
Endpoint1 is not stalled
Endpoint1 is stalled
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT43301 | USB HUB CONTROLLER |
| AT43310 | USB Hub |
| AT43311 | USB Hub |
| AT43312A-AC | Self- and Bus-Bus-powered USB Hub Controller |
| AT43312A-AU | Self- and Bus-Bus-powered USB Hub Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT43301-AU | 功能描述:USB 接口集成電路 USB FOUR PORT HUB GANGED 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| AT43301-SC | 功能描述:USB 接口集成電路 COM TEMP 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| AT43301-SU | 功能描述:USB 接口集成電路 USB FOUR PORT HUB GANGED 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| AT43310 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:USB Hub |
| AT433104AA | 制造商:LINPAC STORAGE SYSTEMS 功能描述:BLUE CONTAINER 25L |
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