TUSB546A-DCI: i2c programming guide Register values

cyriac toms

Part Number: TUSB546A-DCI

Tool/software:

I am using CYPS3125 PD controller to negotiate with tusb through i2c i need to get the register values of tusb for controlling it with CYPD3125

3 months ago

0 Vishesh Pithadiya 3 months ago

TI__Mastermind 42401 points

Hi,

Yes this should be ok. The TUSB546 can only be operated as an I2C device, and has no host capabilities.

0 cyriac toms 3 months ago in reply to Vishesh Pithadiya

Prodigy 130 points

Can you give me the register values for the tusb546

0 Vishesh Pithadiya 3 months ago in reply to cyriac toms

TI__Mastermind 42401 points

Hi,

The values will chnage depending on the application. Can you describe what you're looking to do?

0 cyriac toms 3 months ago in reply to Vishesh Pithadiya

Prodigy 130 points

I have CYPD3125 PD controller which need to control the TUSB for DP altmod for configuring the cypd3125 i need to get the register values for the lanes. How does this application work

0 Vishesh Pithadiya 3 months ago in reply to cyriac toms

TI__Mastermind 42401 points

Hi,

There are two alt mode the TUSB546 is able to support 4xDP and 2xDP and 1xUSB.

The key registers that the PD will need to set are:

0x0A bits [2:0], this will determine the alt mode configuration. and the flip orientation of the USB type-C connector.

The other registers to track are the EQ registers which will control the compensation provided on the signal. These registers are enabled by setting 0x0A bit 4.

These values will need to be tuned based off of your PCB board and the losses associated.

0 cyriac toms 2 months ago in reply to Vishesh Pithadiya

Prodigy 130 points

this is my tusb setup we are not using the dpaux and the usb 3.1 we are just converting the MLP and MLN with four lane display what will the register values that need to be used