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- 1116811_ja-JP
1116811_ja-JP
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1116811_ja-JP
1116811_ja-JP
4080 の USB インターフェイスを使用しない場合、USBx_VDD_3P3 ピンと USBx_VDD_1P0 ピンを接続しないままにしておくことはできますか?P4040では、接続しないという注意で予約されています。それぞれ3.3Vと1.0Vに接続できますか?
USB_VDD_1P0は、1Vまたはプラットフォーム電圧(SOCコアデジタル電源に基づく)に接続する必要があります。USB_VDD_3P3は浮いたままにすることができます。
USBを使用しない場合、USBx_IBIAS_REXTやUSBx_VDD_1P8_DECAPを放置しても安全ですか?
USBをまったく使用しない場合は、次のUSB信号をフローティング状態に保ちます:USB1_IBIAS_REXT、USB2_IBIAS_REXT、USB1_VDD_1P8_DECAPおよびUSB2_VDD_1P8_DECAP、USB1_VDD_3P3、USB2_VDD_3P3。
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