ZHCSDT2C June 2015 – August 2018 TUSB321
PRODUCTION DATA.
The TUSB321 device has two functional modes. Table 3 lists these modes:
MODES | GENERAL BEHAVIOR | PORT PIN | STATES(1) |
---|---|---|---|
Unattached | USB port unattached. ID, PORT operational. 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. | UFP | Attached.SNK |
DRP | Attached.SNK | ||
Attached.SRC | |||
DFP | Attached.SRC |