ZHCSFQ2C November 2016 – June 2018 TUSB422
PRODUCTION DATA.
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Reserved | VBUS_VOLTAGE_MONITOR | DISABLE_VOLTAGE_ALARMS | AUTO_DISCHARGE_DISCONNECT | EN_BLEED_DISCHARGE | FORCE_DISCHARGE | VCONN_PWR_SUPPORTED | ENABLE_VCONN |
R | R/W | R/W | R/W | R/W | RWU | RWU | R/W |
LEGEND: R/W = Read/Write; R = Read only |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7 | Reserved | R | 0 | Reserved |
6 | VBUS_VOLTAGE_MONITOR | R/W | 1 | 0b: VBUS_VOLTAGE Monitoring is enabled.
1b: VBUS_VOLTAGE Monitoring is disabled. Controls only VBUS VOLTAGE Monitoring. VBUS_VOLTAGE will report all zeroes if disabled. |
5 | DISABLE_VOLTAGE_ALARMS | R/W | 1 | 0b: Voltage Alarms Power status reporting is enabled
1b: Voltage Alarms Power status reporting is disabled Controls VBUS_VOLTAGE_ALARM_HI_CFG and VBUS_VOLTAGE_ALARM_LO_CFG. |
4 | AUTO_DISCHARGE_DISCONNECT | R/W | 0 | 0b: The TUSB422 shall not automatically discharge VBUS based on VBUS voltage. (Default)
1b: The TUSB422 shall automatically discharge |
3 | EN_BLEED_DISCHARGE | R/W | 0 | 0b: Disable bleed discharge
1b: Enable bleed discharge of VBUS |
2 | FORCE_DISCHARGE | RWU | 0 | When this field is set, the TUSB422 will discharge VBUS to Vsafe0V or threshold programmed in the VBUS_STOP_DISCHARGE_THRESHOLD register. Once VBUS is discharged to desired level, the TUSB422 will disable the Force Discharge.
0b: Disable forced discharge 1b: Enable forced discharge of VBUS. |
1 | VCONN_PWR_SUPPORTED | R/W | 0 | 0b: TUSB422 delivers at least 1W on VCONN
1b: TUSB422 delivers at least the power indicated in DEVICE_CAPABILITIES.VCONNPowerSupported |
0 | ENABLE_VCONN | RWU | 0 | 0b: Disable VCONN Source
1b: Enable VCONN Source to CC indicated by PLUG_ORIENTATION in TCPC Control register. |