SPI on SSP(LPC2148)

hi,

i need a SPI bus with 15MHZ clock can work for MMC.

i see that the SPI0 for lpc2148 is max to 7.5 MHZ(1/8 PLCK)

& i see that SSP(SPI1) can clock max PLCK/2 so about 30 mhz.

so i want to know can i use SPI1 for MMC. becuse i read it is the motorola sPI.

is it any different from normall SPI?

thanks for help.