参数资料
型号: ISP1520BD,557
厂商: NXP SEMICONDUCTORS
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封装: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件页数: 17/54页
文件大小: 288K
代理商: ISP1520BD,557
ISP1520_4
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 04 — 28 April 2006
23 of 53
Philips Semiconductors
ISP1520
Hi-Speed USB hub controller
[1]
Value in units of 2 mA.
Table 16.
Device_qualier descriptor
Offset
(bytes)
Field name
Value (hex)
Comments
Full-speed
High-speed
0
bLength
0A
descriptor length = 10 B
1
bDescriptorType
06
type = DeviceQualierType
2
bcdUSB
00
refer to
Universal Serial Bus Specication Rev. 2.0
302
02
4
bDeviceClass
09
HUB_CLASSCODE
5
bDeviceSubClass
00
HubSubClassCode
6
bDeviceProtocol
00
01
HubProtocolHSpeedOneTT
7
bMaxPacketSize0
40
packet size = 64 B
8
bNumCongurations 01
01
number of congurations
Table 17.
Other_speed_conguration descriptor
Offset
(bytes)
Field name
Value (hex)
Comments
Full-speed
High-speed
0
bLength
09
descriptor length=9B
1
bDescriptorType
07
type = OtherSpeedCongurationType
2
wTotalLength
19
TotalConfByte
300
00
4
bNumInterfaces
01
-
5
bCongurationValue
01
-
6
iConguration
00
no string supported
7
bmAttributes
E0
self-powered
A0
others
8
bMaxPower
00
self-powered
Table 18.
Conguration descriptor
Offset
(bytes)
Field name
Value (hex)
Comments
Full-speed
High-speed
0
bLength
09
descriptor length=9B
1
bDescriptorType
02
type = CONFIGURATION
2
wTotalLength
19
total length of conguration, interface and endpoint
descriptors = 25 B
300
00
4
bNumInterfaces
01
one interface
5
bCongurationValue
01
conguration value = 1
6
iConguration
00
no conguration string descriptor
7
bmAttributes
E0
self-powered
8
bMaxPower[1]
00
self-powered
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