USB3813I-1080XY 参数 Datasheet PDF下载

USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications

Datasheet

6.2.1.6

Other Embedded Controller functions over USB

The following miscellaneous functions may be configured via USB:







Enable/Disable Embedded controller enumeration

Program Configuration parameters.

Program descriptor fields:

—Language ID

—Manufacturer string

—Product string

—idVendor

—idProduct

—bcdDevice

6.2.2

6.2.2.1

SMBus Accessible Functions

OTP Access over SMBus

The device’s OTP ROM is accessible over SMBus. All OTP parameters can modified via the SMbus

Host. The OTP can be programmed to operate in Single-Ended, Differential, Redundant, or Differential

Redundant mode, depending on the level of reliability required. The supported commands are:













Enable OTP reset

Set OTP operating mode

Set OTP read mode

Program OTP

Get OTP Status

Program OTP control parameters

6.2.2.2

Configuration Access over SMBus

The following functions are available over SMBus prior to the hub attaching to the USB host:





Program Configuration parameters.

Program descriptor fields:

—Language ID

—Manufacturer string

—Product string

—idVendor

—idProduct

—bcdDevice

Program Control Register



6.2.2.3

Run time Access over SMBus

There is a limited number of registers that are accessible via the SMBus during run time operation of

the device. Refer to

for details.

Revision 1.0 (06-17-13)

26

SMSC USB3813

DATASHEET