Table 26-18: SD Set Block Size Task SD{0, 1}Registers Register Field Register Offset Bits Value Check the present state register to make sure the bus is free. reg_presentstate presentstate_inhibitcmd, presentstate_inhibitdat, sdhcdmactrl_wrxferactive, sdhcdmactrl_rdxferactive 0x24 9:8 and 1:0 Read Send block write command (CMD16) (see Table: SD CMD Transfer). Read card-specific data in response. reg_response0 command_response 0x10 15:0 Read Set the block size. reg_blocksize xfer_blocksize 0x04 11:0 0x200