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TUSB422 Datasheet(PDF) 39 Page - Texas Instruments |
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TUSB422 Datasheet(HTML) 39 Page - Texas Instruments |
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39 / 71 page  39 TUSB422 www.ti.com SLLSEW6 – NOVEMBER 2016 Product Folder Links: TUSB422 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated 7.6.27 Fault Status Register (address = 0x1F) [reset = 0x00] Figure 35. Fault Status Register 7 6 5 4 3 2 1 0 Reserved FORCEOFF_V BUS_STATUS AUTO_DIS_FAI L_STATUS FORCE_DIS_F AIL_STATUS VBUS_OCP_F AULT_STATUS VBUS_OVP_F AULT_STATUS VCONN_OCP_ FAULT_STATU S I2C_INT_ERR OR_STATUS R RCU RCU RCU RCU RCU RCU RCU LEGEND: R/W = Read/Write; R = Read only Table 32. Fault Status Register Descriptions Bit Field Type Reset Description 7 Reserved R 0 Shall be set to zero by sender and ignored by receiver 6 FORCEOFF_VBUS_STATUS RCU 0 0b: No Fault Detected, no action (default and not supported) 1b: VBUS Source/Sink has been forced off due to external fault The TUSB422 has disconnected VBUS due to STANDARD_INPUT.ForceOffVbus. This field has no meaning for TUSB422 5 AUTO_DIS_FAIL_STATUS RCU 0 0b: No discharge failure 1b: Discharge commanded by the TCPM failed If POWER_CONTROL.AutoDischargeDisconnect is set, the TUSB422 will report discharge fails if VBUS is not below vSafe0V within tSafe0V. 4 FORCE_DIS_FAIL_STATUS RCU 0 0b: No discharge failure 1b: Discharge commanded by the TCPM failed If POWER_CONTROL.ForceDischarge is set, the TUSB422 will report a discharge fails if VBUS is not below vSafe0V within tSafe0V. 3 VBUS_OCP_FAULT_STATUS RCU 0 0b: Not in an over-current protection state 1b: Over-current fault latched This field has no meaning for TUSB422 2 VBUS_OVP_FAULT_STATUS RCU 0 0b: Not in an over-voltage protection state 1b: Over-voltage fault latched. This field has no meaning for TUSB422 1 VCONN_OCP_FAULT_STATUS RCU 0 The TUSB422 will set this flag if an VCONN over current fault is detected. This flag will also get set if voltage on VCONN pin drops between VCONN present threshold while the Vconn switch is still closed. 0b: No Fault detected 1b: Over current VCONN fault latched 0 I2C_INT_ERROR_STATUS RCU 0 0b: No Error 1b: I2C error has occurred. A TRANSMIT has been sent with an empty TRANSMIT_BUFFER. |
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