JAJSHI6G June 2018 – July 2021 TPS25830-Q1 , TPS25831-Q1
PRODUCTION DATA
Reversible Type-C plug orientation is reported by the POL pin when a UFP is connected. However when no UFP is attached, POL remains de-asserted irrespective of cable plug orientation. Table 10-9 describes the POL state based on which device CC pin detects VRD from an attached UFP pull-down.
CC1 | CC2 | POL | STATE |
---|---|---|---|
Rd | Open | Hi-Z | UFP connected |
Open | Rd | Asserted (pulled low) | UFP connected with reverse plug orientation |
Figure 10-27 shows an example implementation that uses the POL terminal to control the SEL terminal on the HD3SS3212. The HD3SS3212 provides switching on the differential channels between Port B and Port C to Port A depending on cable orientation.