MMCHS_BLK_NBLK_SHIFT
HWRITE4(sc, MMCHS_BLK, (blkcount << MMCHS_BLK_NBLK_SHIFT) |
#define MMCHS_BLK_NBLK_MASK (MMCHS_BLK_NBLK_MAX<<MMCHS_BLK_NBLK_SHIFT)