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AS21P2THB 数据表(PDF) 5 Page - STMicroelectronics |
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AS21P2THB 数据表(HTML) 5 Page - STMicroelectronics |
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5 / 23 page ![]() DocID026023 Rev 1 5/23 AS21P2THB Dedicated port charging detection 23 3 Dedicated port charging detection The AS21P2THB has a built-in dedicated port charging detection circuit to detect the condition when the USB D+/D- lines are both in high state. When this occurs, the device sends an interrupt signal to the processor to indicate that the connected USB device is in dedicated port charging mode. Figure 4. Interrupt function logic representation D1 D2 1S1 1S2 2S1 2S2 SEL INT |
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