參數(shù)資料
型號: ISP1521BE
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Hi-Speed Universal Serial Bus hub controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP80
封裝: 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-315-1, LQFP-80
文件頁數(shù): 26/53頁
文件大小: 270K
代理商: ISP1521BE
Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data
Rev. 03 — 24 November 2004
26 of 53
9397 750 13702
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
[1]
Value in units of 2 mA.
Table 16:
Offset
(bytes)
Device_qualifier descriptor
Field name
Value (hex)
Full-speed
0A
06
00
02
09
00
00
40
01
Comments
High-speed
0A
06
00
02
09
00
01
40
01
0
1
2
3
4
5
6
7
8
bLength
bDescriptorType
bcdUSB
descriptor length = 10 bytes
type = DeviceQualifierType
see USB specification Rev. 2.0
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
bNumConfigurations
HUB_CLASSCODE
HubSubClassCode
HubProtocolHSpeedOneTT
packet size = 64 bytes
number of configurations
Table 17:
Offset
(bytes)
Other_speed_configuration descriptor
Field name
Value (hex)
Full-speed
09
07
19
00
01
01
00
E0
A0
00
Comments
High-speed
09
07
19
00
01
01
00
E0
A0
00
0
1
2
3
4
5
6
7
bLength
bDescriptorType
wTotalLength
descriptor length = 9 bytes
type = OtherSpeedConfigurationType
TotalConfByte
bNumInterfaces
bConfigurationValue
iConfiguration
bmAttributes
-
-
no string supported
self-powered
others
self-powered
8
bMaxPower
Table 18:
Offset
(bytes)
Configuration descriptor
Field name
Value (hex)
Full-speed
09
02
19
00
01
01
00
E0
00
Comments
High-speed
09
02
19
00
01
01
00
E0
00
0
1
2
3
4
5
6
7
8
bLength
bDescriptorType
wTotalLength
descriptor length = 9 bytes
type = CONFIGURATION
total length of configuration, interface and endpoint
descriptors = 25 bytes
bNumInterfaces
bConfigurationValue
iConfiguration
bmAttributes
bMaxPower
[1]
one interface
configuration value = 1
no configuration string descriptor
self-powered
self-powered
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