Table 26-20: SD Read Polled Task SD{0, 1}Registers Register Field Register Offset Bits Value Check the present state register to make sure the card is present. reg_presentstate sdhccarddet_inserted_dsync 0x24 16 Read If not already set, set block size to 512 (see Table: SD Set Block Size). Set up ADMA2: slave select setup ADMA2 descriptor table. Set up mode register with Auto CMD12 enable, block count enable, data transfer direction, DMA enable, and multi/single block select. reg_transfermode ALL 0x0C 5:0 0x37 Send block read command (CMD18) (see Table: SD CMD Transfer). Check for transfer completed. reg_normalintrsts reg_errorintrsts 0x30 15 Read operation Clear the interrupts(if any). reg_normalintrsts ALL 0x30 15:0 0xF3FF Check transfer complete and clear if transfer is completed. reg_normalintrsts normalintrsts_xfercomplete 0x30 1 1b'1 Read response 0. reg_response0 command_response 0x10 15:0 Read