SLVSD02D March 2015 – June 2019 TPS65982
The push-pull output driver is shown in Figure 57. The output buffer has a UARTTX_RO source resistance. The supply voltage to the system side buffer is configurable to be LDO_3V3 by default or VDDIO. This is not shown in Figure 57. The supply voltage to the port side buffers remains LDO_3V3.