Expand description
Battery charging detector
Structs
Type Definitions
Field BCDEN reader - Battery charging detector (BCD) enable Device mode This bit is set by the software to enable the BCD support within the USB device. When enabled, the USB PHY is fully controlled by BCD and cannot be used for normal communication. Once the BCD discovery is finished, the BCD should be placed in OFF mode by clearing this bit to ’0 in order to allow the normal USB operation.
Field BCDEN writer - Battery charging detector (BCD) enable Device mode This bit is set by the software to enable the BCD support within the USB device. When enabled, the USB PHY is fully controlled by BCD and cannot be used for normal communication. Once the BCD discovery is finished, the BCD should be placed in OFF mode by clearing this bit to ’0 in order to allow the normal USB operation.
Field DCDEN reader - Data contact detection (DCD) mode enable Device mode This bit is set by the software to put the BCD into DCD mode. Only one detection mode (DCD, PD, SD or OFF) should be selected to work correctly.
Field DCDEN writer - Data contact detection (DCD) mode enable Device mode This bit is set by the software to put the BCD into DCD mode. Only one detection mode (DCD, PD, SD or OFF) should be selected to work correctly.
Field DCDET reader - Data contact detection (DCD) status Device mode This bit gives the result of DCD.
Field DPPU_DPD reader - DP pull-up / DPDM pull-down Device mode This bit is set by software to enable the embedded pull-up on DP line. Clearing it to ’0 can be used to signal disconnect to the host when needed by the user software. Host mode This bit is set by software to enable the embedded pull-down on DP and DM lines.
Field DPPU_DPD writer - DP pull-up / DPDM pull-down Device mode This bit is set by software to enable the embedded pull-up on DP line. Clearing it to ’0 can be used to signal disconnect to the host when needed by the user software. Host mode This bit is set by software to enable the embedded pull-down on DP and DM lines.
Field PDEN reader - Primary detection (PD) mode enable Device mode This bit is set by the software to put the BCD into PD mode. Only one detection mode (DCD, PD, SD or OFF) should be selected to work correctly.
Field PDEN writer - Primary detection (PD) mode enable Device mode This bit is set by the software to put the BCD into PD mode. Only one detection mode (DCD, PD, SD or OFF) should be selected to work correctly.
Field PDET reader - Primary detection (PD) status Device mode This bit gives the result of PD.
Field PS2DET reader - DM pull-up detection status Device mode This bit is active only during PD and gives the result of comparison between DM voltage level and VLGC threshold. In normal situation, the DM level should be below this threshold. If it is above, it means that the DM is externally pulled high. This can be caused by connection to a PS2 port (which pulls-up both DP and DM lines) or to some proprietary charger not following the BCD specification.
Field SDEN reader - Secondary detection (SD) mode enable Device mode This bit is set by the software to put the BCD into SD mode. Only one detection mode (DCD, PD, SD or OFF) should be selected to work correctly.
Field SDEN writer - Secondary detection (SD) mode enable Device mode This bit is set by the software to put the BCD into SD mode. Only one detection mode (DCD, PD, SD or OFF) should be selected to work correctly.
Field SDET reader - Secondary detection (SD) status Device mode This bit gives the result of SD.