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參數(shù)資料
| 型號(hào)： | PL-2521 |
| 英文描述： | PL-2521 Hi-Speed USB Cellular Mate and Flash Disk Controller Product Datasheet v1.0|Doc - Data Sheet?-- ?PL-2521 Hi-Speed USB CellularMate and Flash Disk Controller |
| 中文描述： | 特等- 2521高速USB細(xì)胞伴侶和U盤(pán)控制器產(chǎn)品數(shù)據(jù)表1.0 |文件-數(shù)據(jù)表？ - ？特等- 2521高速USB CellularMate和U盤(pán)控制器 |
| 文件頁(yè)數(shù)： | 19/19頁(yè) |
| 文件大?。?/td> | 190K |
| 代理商： | PL-2521 |
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Release Date
August 2003
ds_pl2507_v13
PL-2507 Product Datasheet
- 9 -
Document Version 1.3
5.0 USB Port Descriptor for PL-2507
PL-2507 supports the following standard USB descriptors:
Device descriptor.
Configuration descriptor that supports one interface.
String descriptors. Three string descriptors are implemented namely, language ID, Vender
String, and Product String.
5.1 Device Descriptor
Table 5-1 Device Descriptor
Offset
Field
Size
Value
Description
0
bLength
Byte
12h
Size of this descriptor in bytes.
1
bDescriptorType
Byte
01h
DEVICE descriptor type.
2
bcdUSB
Word
0200h
USB Specification version 2.0
4
bDeviceClass
Byte
00h
Interface Specific.
5
bDeviceSubclass
Byte
00h
Interface Specific.
6
bDeviceProtocol
Byte
00h
Interface Specific.
7
wMaxPacketSize0
Byte
40h
Maximum packet size for endpoint 0 is 64.
8
idVendor
Word
067Bh
Vendor ID for Prolific Technologies.
(1)
10
idProduct
Word
2507h
Product ID for PL-2507.
(1)
12
bcdDevice
Word
0100h
Device Release 1.0.
(1)
14
iManufacturer
Byte
01h
String index 1 describes manufacturer.
(2)
15
iProduct
Byte
02h
String index 2 describes product.
(3)
16
iSerialNumber
Byte
00h
No serial number string
17
bNumConfigurations
Byte
01h
One possible configuration
Notes:
(1)
– These default values shown here could be modified by external EEPROM;
(2)
– The default string is “Prolific Technology Inc.” in UNICODE format and could be replaced by the contents of
external EEPROM;
(3)
– The default string is “ATAPI-6 Bridge Controller” in UNICODE format and could be replaced by the contents
of external EEPROM.
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