Other Parts Discussed in Thread: TUSB1044, TUSB422
Hi, all
We are going to chose TUSB1044 / TUSB1046-DCI as the switch for Type-C Display port alt mode. there are two questions as below:
1. If VCC(3.3V) of TUSB1044 / TUSB1046-DCI is power off, will the 1.8V IO level pins between application processor and TUSB1044 / TUSB1046-DCI(such as LIP / SCL, CTL0 / SDA and CTL1 / HPDIN) leak to TUSB1044 / TUSB1046-DCI,these pins such as I2C are sharing with other active chips.
2. The HPD event can be obtained by the output of PD controller?Does TI have such a PD controller that can be paired with these two ICs? What kind of interface is the HPD event output, GPIO or I2C or others?
Thanks
Best Regards
Hai