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请教关于SPI接口的问题

Other Parts Discussed in Thread: MSP430FR5739

有两个问题想请教下:

1.请问MSP430FR5739中eUSCI_B0中SPI接口和eUSCI_A0中的UART接口,可否同时使用

                             

2.UCxSTE在MCU一直作为主机模式下是否需要配置[

P1SEL1 |= BIT3+BIT6+BIT7;//P1.3为UCB0STE引脚
P1SEL0 &= ~(BIT3+BIT6+BIT7);//PIN脚功能选择为第二项

P2SEL1 |= BIT2;
P2SEL0 &= ~BIT2;//时钟引脚功能选择

]