CB710_MMC_S0_FIFO_UNDERFLOW
if (status & CB710_MMC_S0_FIFO_UNDERFLOW) {
CB710_MMC_S0_FIFO_UNDERFLOW);
status &= ~CB710_MMC_S0_FIFO_UNDERFLOW;
& CB710_MMC_S0_FIFO_UNDERFLOW) {
CB710_MMC_S0_FIFO_UNDERFLOW);