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MSP430FR6989的I2C总线问题

Other Parts Discussed in Thread: MSP430FR6989

MSP430FR6989的I2C总线可以使用内部上拉电阻,而不接外部上拉电阻,可以吗?

我手上有一块MSP430FR6989的LaunchPad,它引出的I2C总线接口是P4.0和P4.1,但是没接外部上拉电阻,是不是表示:可以使用P4.0和P4.1的内部上拉电阻给I2C总线用。就是:P4REN |= (BIT0 + BIT1);P4OUT |= (BIT0 + BIT1);请指教,谢谢了。