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參數(shù)資料
| 型號： | LZ85202 |
| 廠商： | Sharp Corporation |
| 英文描述： | IrDA Control Host Controller with USB Interface(帶USB接口的IrDA控制主控制器) |
| 中文描述： | 紅外線控制主機(jī)控制器與USB接口（帶的USB接口的紅外線控制主控制器） |
| 文件頁數(shù)： | 32/48頁 |
| 文件大?。?/td> | 219K |
| 代理商： | LZ85202 |
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LZ85202
26
IrDA Control Host Controller with USB Interface User
’
s Guide
USB Dongle Operation
The Communication Between USB Dongle and Host (Windows 98)
The data between the Root Host and the USB Dongle is communicated through the two
pipes, the Control Pipe (Endpoint 0) and the Interrupt Pipe (Endpoint 1). By using the Con-
trol Pipe, the USB and the HID request are transferred from the Host to the USB Dongle,
and the data corresponding to this request (CData) is IN/OUT transferred. The Interrupt IN
polling requests between the HID and the Dongle Driver, and between the Dongle Driver
and the USB Dongle are transferred through the Interrupt Pipe. The USB Dongle responds
with the data (SData) corresponding to the IN polling request. Figure 14 shows the trans-
ferring path for these data.
Figure 14. Requests and Data Stream Between Host and USB Dongle
ENDPOINT 0
USB CONTROL REQUEST
CDATA (Endpoint 0)
INTERRUPT IN (Transfer Request)
SDATA (endpoint 1)
NOTES:
HID
DRIVER
DONGLE
DRIVER
HOST
(Windows 98 Driver Stack)
USB
DRIVER
ENDPOINT 1
CONTROL PIPE
INTERRUPT PIPE
USB
USB DONGLE
LZ85202-14
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