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. |