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參數資料
型號： W99681CF
廠商： WINBOND ELECTRONICS CORP
英文描述： JPEG USB Dual Mode Camera Chip(運用JPEG壓縮技術、通用串行總線結構技術、雙制式的照相電路數字處理芯片的攝像照相機接口控制器)
中文描述： JPEG格式相機的USB雙模芯片（運用的JPEG壓縮技術，通用串行總線結構技術，雙制式的照相電路數字處理芯片的攝像照相機接口控制器）
文件頁數： 29/78頁
文件大小： 816K
代理商： W99681CF
W99681CF
Publication Release Date: March 2000
- 29 - Revision A1
Get Interface
selected alternate setting. The default alternate setting is zero. The W99681CF returns STALL for a
Get Interface request for any other Interface or any Get Interface request before the Device is
configured.
The W99681CF supports a Get Interface request for Interface 0 by returning the
Get Status
defined endpoint (default or Video Data-In). The W99681CF returns STALL if a Get Status request is
received for Interface 0 or any defined endpoint before the Device is configured, or if a Get Status
request is received for any unrecognized or unsupported recipient.
The W99681CF supports a Get Status directed at the device, Interface 0, or any
Set Address
from the default address (zero) to a unique address.
The W99681CF supports a Set Address request to change the Device Address
Set Configuration
Configuration to zero (unconfigured) or the bConfiguration value defined in the Configuration Descriptor.
The W99681CF returns STALL if a Set Configuration request is received with any other value.
The W99681CF supports Set Configuration requests to set the Device
Set Descriptor
Configuration, Interface, Endpoint, or String). It returns STALL for any Set Descriptor request.
The W99681CF does not support update for any defined Descriptor (Device,
Clear Feature
The W99681CF supports the following Set Feature request:
When directed to an endpoint recipient for ENDPOINT_STALL
The W99681CF returns STALL if any unrecognized or unsupported Set Feature request is received.
Set Interface
for defined Alternate Settings. This request allows the host to select the desired alternate setting. The
W99681CF returns STALL for any other Set Interface request.
When configured, the W99681CF supports a Set Interface request to Interface 0
Synch Frame
The W99681CF returns STALL for any Synch Frame request.
7.4.2.2 Video Camera Class-Specific Requests
Currently, there is no class-specific request is defined for the video camera devices. The W99681CF
returns STALL for any class-specific request.
7.4.2.3 Vendor-Specific Requests
The W99681CF supports two vendor-specific requests for the control registers In/Out transfers on the
default pipe (Endpoint 0): Get W99681CF Control and Set W99681CF Control. The vendor-specific
requests defined for the W99681CF are shown in Table 7.4. The W99681CF returns STALL if an
unrecognized or unsupported vendor-specific request is received.
Table 7.4 W99681CF Vendor-Specific Requests
bmRequestType
bRequest
wValue
wIndex
wLength
Data
11000000B
GET_W99681CF_CONTROL
(1)
Zero
ndex
1
Length
2
Data
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相關代理商/技術參數
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W99685 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
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