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參數(shù)資料
| 型號(hào)： | W99681CF |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | JPEG USB Dual Mode Camera Chip(運(yùn)用JPEG壓縮技術(shù)、通用串行總線結(jié)構(gòu)技術(shù)、雙制式的照相電路數(shù)字處理芯片的攝像照相機(jī)接口控制器) |
| 中文描述： | JPEG格式相機(jī)的USB雙模芯片（運(yùn)用的JPEG壓縮技術(shù)，通用串行總線結(jié)構(gòu)技術(shù)，雙制式的照相電路數(shù)字處理芯片的攝像照相機(jī)接口控制器） |
| 文件頁(yè)數(shù)： | 31/78頁(yè) |
| 文件大?。?/td> | 816K |
| 代理商： | W99681CF |
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W99681CF
Publication Release Date: March 2000
- 31 - Revision A1
16
iSerialNumber
1
0x00
ndex of string descriptor describing the
device
′
s serial number
Number of possible configurations
17
bNumConfigurations
1
0x01
Note 1. Vendor ID and Product ID will be replaced with bytes 0-3 of an external serial E
2
PROM or uC if
present.
7.4.3.2 Configuration Descriptors
The W99681CF returns a Configuration Descriptor and other configuration related descriptors as
described below. When the host requests the Configuration Descriptor, all related interface and
endpoint descriptors are returned.
Table 7.6 W99681CF Configuration Descriptor
Offset
Field
Size
Value
Description
0
bLength
1
0x09
Size of this descriptor in bytes
1
bDescriptorType
1
0x02
Configuration Descriptor Type
2
wTotalLength
2
0x0119
Total length of data returned for this
configuration. Includes the combined length of
all descriptors returned for this configuration.
4
bNumberInterfaces
1
0x01
Number of interfaces supported by this
configuration
5
bConfigurationValue
1
0x01
Value used as an argument to Set
Configuration to select this configuration
6
iConfiguration
1
0x00
No configuration string
7
bmAttributes
1
0x80
Configuration characteristics
8
Maxpower
1
0xFA or
0x32
(Note 1)
Maximum power consumption from the bus
when the device is fully operational. Expressed
in 2 mA units.
Note 1. Value of this field is 0xFA (500 mA) for high power devices (CR00_10 = 1), or 0x32 (100 mA)
for low power devices (CR00_10 = 0).
Table 7.7 W99681CF Video Interface Descriptor
Offset
Field
Size
Value
Description
0
bLength
1
0x09
Size of this descriptor in bytes
1
bDescriptorType
1
0x04
nterface Descriptor Type
2
bInterfaceNumber
1
0x00
Number of interface
3
bAlternateSetting
1
0x00
Default alternate setting zero
4
bNumEndpoints
1
0x01
Number of endpoints used by this interface
5
bInterfaceClass
1
0x00
mage interface class code
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W99685 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| W99685BS | 制造商:WINBOND 制造商全稱:Winbond 功能描述:SYSTEM CAMERA DEVICE |
| W99685FS | 制造商:WINBOND 制造商全稱:Winbond 功能描述:SYSTEM CAMERA DEVICE |
| W9968CF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Camera |
| W9986D | 制造商:WINBOND 制造商全稱:Winbond 功能描述:MPEG Audio Layer III Decoder |
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