USB2512 datasheet(35/72 Pages) SMSC

35 / 72 page

USB 2.0 Hi-Speed Hub Controller

Datasheet

SMSC USB251x

Revision 1.0 (3-11-09)

DATASHEET

Please see the Internal Register Set (Common to EEPROM and SMBus) for a list of the available data

fields. Please visit www.smsc.com/ftpdocs/usb.html to locate the configuration utility for the hub

EEPROM data. Select the “e2prommap.msi” link to download the tool.

Each register has R/W capability. SMBUS and EEPROM Reset Values are 0x00. Reserved registers

should be written to ‘0’ unless otherwise specified. Contents read should be ignored (such as the case

of ‘R’ in the table below).

8.2.1

Internal Register Set (Common to EEPROM and SMBus)

Table 8.2 Internal Default, EEPROM and SMBus Register Memory Map

ADDRESS

DEFAULT ROM VALUES (HEXIDECIMAL)

00h

Vendor ID LSB

01h

Vendor ID MSB

02h

Product ID LSB

03h

Product ID MSB

04h

Device ID LSB

05h

Device ID MSB

06h

Configuration Data Byte 1

07h

Configuration Data Byte 2

08h

Configuration Data Byte 3

09h

Non-Removable Devices

0Ah

Port Disable (Self)

0Bh

Port Disable (Bus)

0Ch

Max Power (Self)

0Dh

Max Power (Bus)

0Eh

Hub Controller Max Current (Self)

0Fh

Hub Controller Max Current (Bus)

10h

Power-on Time

11h

Language ID High

12h

Language ID Low

13h

Manufacturer String Length

14h

Product String Length

15h

Serial String Length

16h-53h

Manufacturer String

USB2512 Datenblatt(PDF) 35 Page - SMSC Corporation

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