SLVUCR8A September 2023 – March 2024 TPS25751
The PD Controller uses the TX_SOURCE_CAPS register (0x32) to know what PDO(s) to advertise. The PD Controller will automatically respond to Request messages as appropriate, and each port acts independently. The host can dynamically change the TX_SOURCE_CAPS register, then issue the 'SSrC' 4CC Task and the PD controller will advertise the new PDOs.