ISP1521BE ST-Ericsson Inc, ISP1521BE Datasheet - Page 25

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ISP1521BE

Manufacturer Part Number
ISP1521BE
Description
IC USB HUB CONTROLLER HS 80-LQFP
Manufacturer
ST-Ericsson Inc
Datasheet

Specifications of ISP1521BE

Controller Type
USB Hub
Interface
I²C
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
80-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Other names
568-1170
ISP1521BE,557

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Philips Semiconductors
10. Descriptors
Table 15.
ISP1521_4
Product data sheet
Offset
(bytes)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Field name
bLength
bDescriptorType
bcdUSB
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
idVendor
idProduct
bcdDevice
iManufacturer
iProduct
iSerialNumber
bNumConfigurations 01
Device descriptor
Table 14.
The ISP1521 hub controller supports the following standard USB descriptors:
The hub returns descriptors based on the mode of operation: full-speed or high-speed.
Bit
0
1 to 7
Device
Device_qualifier
Other_speed_configuration
Configuration
Interface
Endpoint
Hub
Value (hex)
Full-speed
12
01
00
02
09
00
00
40
CC
04
21
15
00
02
01
02
03
Name
Hub Status Change
Port n Status Change
Status Change byte: bit allocation
High-speed
12
01
00
02
09
00
01
40
CC
04
21
15
00
02
01
02
03
01
Rev. 04 — 30 March 2006
Value
0
1
0
1
Comments
descriptor length = 18 B
type = DEVICE
refer to Universal Serial Bus Specification Rev. 2.0
HUB_CLASSCODE
HubSubClassCode
HubProtocolHSpeedOneTT
packet size = 64 B
Philips Semiconductors vendor ID (04CC); can be
customized
the ISP1521 product ID; can be customized
device ID; can be customized
can be customized
can be customized
can be customized; this value must be unique
one configuration
Description
no change in the hub status
change in the hub status detected
no change in the status of port n (n = 1 to 7)
change in the status of port n (n = 1 to 7)
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Hi-Speed USB hub controller
ISP1521
24 of 55

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