USB2513 datasheet(27/63 Pages) MICROCHIP

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USB 2.0 Hi-Speed Hub Controller

Datasheet

SMSC USB251xB/xBi

Revision 2.2 (02-17-12)

DATASHEET

5.1

Internal Register Set (Common to I2C EEPROM and SMBus)

The register set available when configuring the hub to interface over I2C or SMBus is outlined in the

table below. Each register has R/W capability, where EEPROM reset values are 0x00. Reserved

registers should be written to 0 unless otherwise specified. Contents read from unavailable registers

should be ignored.

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

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