28069的spi问题

请教一下在F2806x_Spi.c文件里有对spi口的初始化，如下

GpioCtrlRegs.GPAPUD.bit.GPIO16 = 0; // Enable pull-up on GPIO16 (SPISIMOA)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pull-up on GPIO17 (SPISOMIA)
GpioCtrlRegs.GPAPUD.bit.GPIO18 = 0; // Enable pull-up on GPIO18 (SPICLKA)
GpioCtrlRegs.GPAPUD.bit.GPIO19 = 0; // Enable pull-up on GPIO19 (SPISTEA)

// GpioCtrlRegs.GPBPUD.bit.GPIO54 = 0; // Enable pull-up on GPIO54 (SPISIMOA)
// GpioCtrlRegs.GPBPUD.bit.GPIO55 = 0; // Enable pull-up on GPIO55 (SPISOMIA)
// GpioCtrlRegs.GPBPUD.bit.GPIO56 = 0; // Enable pull-up on GPIO56 (SPICLKA)
// GpioCtrlRegs.GPBPUD.bit.GPIO57 = 0; // Enable pull-up on GPIO57 (SPISTEA)

其中GPIO16~19是一组，GPIO54~57是一组，我可不可以使用GPIO16加GPIO55,GPIO56,GPIO57凑成一组呢，还是必须要严格配对