TUSB564: Register programming steps

Antony

1. Should we write EQ_OVERRIDE bit to '1' before or after we configure EQ setting in 0x10/0x11/0x20/0x21?  Or it doesn't matter how the order is here?
   1. Yes, you should write EQ_OVERRIDE bit first and then apply the EQ setting.
2. Do always need to keep 0x0A register configured as 0x10 when nothing is connected to the type-c port?
   1. Yes
3. In addition to 0x0A/0x10/0x11/0x20/0x21, is there any other register we must configure under I2C mode?
   1. Write 0x80 to register 0x13 is another potential step when debugging the DP Alt Mode over Type-C. The value of 0x80 will disable AUX snoop and enable all four DP lanes.

Thanks

David

Hi David,

If we configure the chip with the steps below, will EQ setting (0x10/0x11/0x20/0x21) be reset after step3?  Do we need to configure EQ setting again after step3?

• Step1:write EQ_OVERRIDE  bit to '1' in the beginning by configure 0x0A register to 0x10
• Step2: Configure EQ setting as we need in 0x10/0x11/0x20/0x21
• Step3: There's a type-c device plugged in and we configure 0x0A register as 0x13.

Thanks,

Antony