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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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FUSB302BMPX Arkusz danych(PDF) 10 Page - ON Semiconductor |
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FUSB302BMPX Arkusz danych(HTML) 10 Page - ON Semiconductor |
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10 / 32 page  FUSB302B www.onsemi.com 10 Figure 10. SRC Software Flow Disabled: FUSB302B in low power mode looking for an attach Unattached.SRC: Host software enables FUSB302B pull−ups and measure block to detect attach FUSB302B I_TOGDONE interrupt alerts host software that something has attached. Attached.SRC Host software configures FUSB302B based on insertion orientation and enables VBUS and VCONN AudioAccessory DebugAccessory Host software utilizes I_COMP and I_BC_LVL interrupts to determine an attach and what type of port is attached. FUSB302B I_COMP interrupt alerts host software that a detach has occurred FUSB302B I_COMP and I_VBUSOK interrupts alert host software that a accessory detach has occurred Manual Dual-Role Detection and Configuration The Type-C specification allows ports to be both a device and a host depending on what type of port has attached. This functionality is similar to USB OTG ports with the current USB connectors and is called a dual-role port. The FUSB302B can be used to implement a dual-role port. A Type-C dual role port toggles between presenting as a Type-C device and a Type-C host. The host software controls the toggle time and configuration of the FUSB302B in each state as shown in Figure 11. Figure 11. DRP Software Flow Disabled: FUSB302B in low power mode looking for an attach Unattached.SNK: Host software enables FUSB302B pull−downs and measure block to detect attach FUSB302B I_TOGONE interrupt alerts host software that something has attached. Attached.SNK Host software uses FUSB302B comparators and DAC to determine attach orientation and port type FUSB302B I_VBUSOK interrupt alerts host software that an attach has occurred FUSB302B I_VBUSOK interrupt alerts host software that a detach has occurred Host software enables FUSB302B low power Disabled state Unattached.SRC: Host software enables FUSB302B pull−ups and measure block to detect attach Attached.SRC Host software configures FUSB302B based on insertion orientation and enables VBUS and VCONN Host software toggle expires Host software utilizes I_COMP and I_BC_LVL interrupts to determine an attach FUSB302B I_COMP interrupt alerts host software that a detach has occurred |
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