VIC_CMD
vic_write(sc, VIC_CMD, VIC_CMD_INTR_ENABLE);
vic_write(sc, VIC_CMD, VIC_CMD_INTR_DISABLE);
vic_write(sc, VIC_CMD, VIC_CMD_IFF);
vic_write(sc, VIC_CMD, cmd);
return (vic_read(sc, VIC_CMD));
vic_write(sc, VIC_CMD, VIC_CMD_INTR_ACK);
vic_write(sc, VIC_CMD, VIC_CMD_MCASTFIL);
vic_write(sc, VIC_CMD, VIC_CMD_IFF);