ZHCSDU0F May 2015 – March 2022 TUSB320
PRODUCTION DATA
The TUSB320 device has four functional modes. Table 7-4 lists these modes:
| MODES | GENERAL BEHAVIOR | PORT PIN | STATES(1) |
|---|---|---|---|
| Unattached | USB port unattached. ID, PORT operational. I2C on. CC pins configure according to PORT pin. | UFP | Unattached.SNK |
| AttachWait.SNK | |||
| DRP | Toggle Unattached.SNK → Unattached.SRC | ||
| AttachedWait.SRC or AttachedWait.SNK | |||
| DFP | Unattached.SRC | ||
| AttachWait.SRC | |||
| Active | USB port attached. All GPIOs operational. I2C on. | UFP | Attached.SNK |
| DRP | Attached.SNK | ||
| Attached.SRC | |||
| Audio accessory | |||
| Debug accessory | |||
| DFP | Attached.SRC | ||
| Audio accessory | |||
| Debug accessory | |||
| Dead battery | No operation. VDD not available. | UFP/DRP/DFP | Default device state to UFP/SNK with Rd. |
| Shutdown | VDD available. EN_N pin high. | UFP/DRP/DFP | Default device state to UFP/SNK with Rd. |