ZHCSFQ2C November 2016 – June 2018 TUSB422
PRODUCTION DATA.
The TUSB422 is unable to directly control VBUS enable due to no GPIO support. For this reason, external microprocessor must directly control the Vbus enable. If it wishes, the external microprocessor may notify the TUSB422 when Vbus has been enable/disabled, or raised above vSafe5V value. Notification to TUSB422 comes in the form of writing to the Command register any of the following commands: SourceVbusDefaultVoltage (that is, vSafe5V enable), SourceVbusHighVoltage (that is, greater than vSafe5V), or DisableSourceVbus. If these commands are issued to the TUSB422, the TUSB422 ignores these commands.