ISP1520BD ST-Ericsson Inc, ISP1520BD Datasheet - Page 17

• Manufacturer Part Number: ISP1520BD
• Description: IC, CONTROLLER, USB HUB, 64-LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1520BD

• Usb Type: USB Peripheral Controller
• Usb Version: 2.0
• Data Rate: 480Mbps
• No. Of Ports: 5
• Supply Voltage Range: 3V To 3.6V, 4.5V To 5.5V
• Digital Ic Case Style: QFP
• No. Of Pins: 64
• Package / Case: LQFP
• Applications: USB Hub/Microcontroller
• Interface: I²C
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-1168; ISP1520BD,557

Philips Semiconductors
ISP1520_4
Product data sheet
8.2.3 ROM or EEPROM map
8.2.4 ROM or EEPROM detailed map
When external microcontroller mode is selected and while the external microcontroller is
writing to the internal RAM, any request to configurable descriptors will be responded to
with a Not AcKnowledge (NAK). There is no specified time-out period for the NAK signal.
This data is then passed to the host during the enumeration process.
The three configuration methods are selected by connecting pins SCL and SDA in the
manner given in
Table 11.
Remark: A 128 B EEPROM supports one language ID only, and a 256 B EEPROM
supports two language IDs.
Table 12.
Configuration method
Internal ROM
External EEPROM
External microcontroller
Address
(hex)
Signature descriptor
00
01
Device descriptor
02
03
04
05
Fig 8. ROM or EEPROM map
Content
signature (low)
signature (high)
idVendor (low)
idVendor (high)
idProduct (low)
idProduct (high)
Configuration method
ROM or EEPROM detailed map
Table
11.
Rev. 04 — 28 April 2006
Default
(hex)
55
AA
CC
04
20
15
SCL
ground
2.2 kΩ to 4.7 kΩ pull-up
driven LOW by the
microcontroller during reset
0Ah
FFh
00h
02h
10h
7Fh
80h
(second Language ID):
Example
(hex)
-
-
-
-
-
-
iSerial Number string
iSerial Number string
iManufacturer string
iManufacturer string
(first Language ID):
Device Descriptor
String Descriptor
String Descriptor
iProduct string
iProduct string
Language ID
Signature
Comment
signature to signify valid data comment
Philips Semiconductors vendor ID
ISP1520 product ID
mld714
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Hi-Speed USB hub controller
SDA
ground
2.2 kΩ to 4.7 kΩ pull-up
2.2 kΩ to 4.7 kΩ pull-up
ISP1520
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