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STG3220 数据表(PDF) 5 Page - STMicroelectronics |
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STG3220 数据表(HTML) 5 Page - STMicroelectronics |
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5 / 23 page ![]() STG3220 Dedicated port charging detection Doc ID 15647 Rev 1 5/23 3 Dedicated port charging detection The STG3220 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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