參數(shù)資料
型號(hào): LZ85194
廠商: Sharp Corporation
英文描述: IrDA Control Peripheral Engine(IrDA 控制外圍處理器)
中文描述: 紅外線控制周邊引擎(紅外線控制外圍處理器)
文件頁(yè)數(shù): 32/76頁(yè)
文件大?。?/td> 256K
代理商: LZ85194
LZ85194
26
IrDA Control Peripheral Engine User
s Guide
Device Descriptor
The Device Descriptor must be written to PE in the Device Descriptor format specified in
Universal Serial Bus Specification.* See the
Sample Descriptors
section for the device
descriptor samples.
Values specified in USB Forum must be configured to idVendor. As to idProduct and
bcdDevice, appropriate values must be configured.
Index to each String Descriptor should be assigned, if any, as for iManufacturer, iProd-
uct, and iSerialNumber.
NOTE:
*Universal Serial Bus Specification, Revision 1.0, January 15, 1996.
Table 17. Device Descriptor
OFFSET
FIELD
SIZE
DESCRIPTION
0
1
bLength
bDescriptorType
1
1
Size of this descriptor in bytes
Device Descriptor Type
2
4
5
6
7
8
bcdUSB
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
idVendor
idProduct
bcdDevice
iManufacturer
iProduct
iSerialNumber
bNumConfigurations
2
1
1
1
1
2
2
2
1
1
1
1
USB Specification release Number in Binary-Coded Decimal
Class code (assigned by the USB)
Subclass code (assigned by the USB)
Protocol code (assigned by the USB)
Maximum packet size for Endpoint zero
Vendor ID (assigned by the USB)
Product ID (assigned by the manufacturer)
Device release number in binary-coded decimal
Index of string descriptor describing manufacturer
Index of string descriptor describing product
Index of string descriptor describing the device's serial number
Number of possible configurations
10
12
14
15
16
17
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