MSP430F5528: MSP low-power microcontroller forum

Yes. F5528 supports 3-wire SPI mode and 4-wire SPI mode.

If you look at the user's guide slau208, you can find the bot USCI_A and USCI_B support SPI interface. In the register description for UCAxCTL0.UCMODEx, you can see the SPI mode supported configuration: 

bit 2-1: UCMODEx

• U SCI mode. The UCMODEx bits select the synchronous mode when UCSYNC =1.
  00b = 3-pin SPI
  01b = 4-pin SPI with UCxSTE active high: Slave enabled when UCxSTE = 1
  10b = 4-pin SPI with UCxSTE active low: Slave enabled when UCxSTE = 0
  11b = I2C mode

Thanks, 

Lixin

Unfortunately, the terminology is somewhat muddled.

Lixin has described 3-pin mode (sometimes "3-wire") which just means there is no /CS pin. The MSP430 USCI supports this.

"3-wire" mode (sometimes "3-pin") means that MISO and MOSI use the same physical wire, and master/slave alternately drive that wire based on some higher-level protocol. The MSP430 USCI doesn't support this -- you need to do it explicitly, by switching the pins (PSEL) at the right times.