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參數(shù)資料
| 型號(hào)： | ML60852 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | USB Device Controller |
| 中文描述： | USB設(shè)備控制器 |
| 文件頁數(shù)： | 14/81頁 |
| 文件大?。?/td> | 451K |
| 代理商： | ML60852 |
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PEDL60852-01
1
Semiconductor
ML60852
14/81
(4) Operation of control transfer
(a) Setup stage
The setup token and 8 bytes of setup data are transmitted from the host. The ML60852 decodes the setup token,
and automatically stores the 8 bytes of setup data in the setup register. When this is completed normally, the
ML60852 returns ACK to the host.
The 8-byte setup data is the standard request code defined in Section 9.3 of the USB Standards, or a code of the
requests unique to each device class, etc. The request is decoded on the local MCU side.
(b) Data stage
If the request specified by the 8-byte setup data is also accompanied by transfer of parameter data from the host
to the device, the transfer is a control write transfer, and the OUT token and the data packet are transmitted
from the host. When these are received normally, the ML60852 stores the parameter data in the EP0 receive
FIFO and returns ACK to the host.
If the request is accompanied by transfer of parameter data from the device to the host, the transfer is a control
read transfer, and when the host sends the IN token, the ML60852 sends the parameter data that was already
stored beforehand in the EP0 transmit FIFO by the local MCU. When the host receives this normally, it returns
an ACK to the ML60852.
On the other hand, in the case of requests that do not contain any parameter data that need to be transmitted or
received, this data stage will not be present and the processing proceeds directly to the status stage from the
setup stage.
(c) Status stage
The status stage is a stage intended for reporting the status of the result of executing a request from the device
to the host. During a control write transfer or a control transfer without data, the IN token is sent by the host,
and the ML60852 returns a response to it. During a control read transfer, the OUT token and data of zero
length are sent by the host, and the ML60852 returns a response to it.
During the above control transfers, the local MCU need only read from or write to the 8-byte setup registers
mapped at 00h to 07h, the EP0 transmit FIFO mapped at 70h, and the EP0 receive FIFO mapped at 78h
according to the interrupt cause, and all other operations will be carried out automatically by the ML60852.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML60852A | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:USB Device Controller |
| ML60852ATBZ010 | 功能描述:USB 接口集成電路 12 Mbps; USB Device Controller 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 |
| ML60852ATBZ03A | 制造商:ROHM Semiconductor 功能描述: |
| ML-60-V2/80721 | 制造商:Thomas & Betts 功能描述: |
| ML61 | 制造商:MINILOGIC 制造商全稱:MINILOGIC 功能描述:Series Positive Voltage Detector |
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