MSP430作为I2C从机，从机地址写在UCB0I2COA，我看了用户手册，查看了所有I2C相关的寄存器，没有发现如何判断I2C地址的末尾R/W信号的，也就是MSP430从机没法判断主要是要读数据还是写数据？我看了所有mspware的i2c例程，msp430作为从机，自己决定是接收数据还是发送数据，难道从机自己就知道主机要做什么么，要什么数据么？
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