Reset clk cs (CMD) IN (DATA) OUT Init (CMD 1) clk cs (CMD) IN (DATA) OUT CID Read clk cs 74+ clocks 8 x 4 (64 clocks) 8 8 8x (multiple) 8 8 NCR 01h 40h (CMD0) 95h (CRC) 8 8 x 4 (64 clocks) 8 8x (multiple) 8 8 NCR 41h (CMD1) FFh (CRC) 00h 8 x 4 (64 clocks) 8 8 8x (multiple) 8 8x 8 8 x 16 (64 clocks) 8 8 8 NCR (CMD) IN (DATA) OUT 4Ah (CMD10) FFh (CRC) CID Data 00h FEh (Start Byte) CRC (2 Bytes) Don’t Care 8 = Number of clocks 8 = Number of “dummy” clocks 8 x = Multiples of 8 clocks 8x = Multiples of 8 “dummy” clocks 8 x 4 = Fixed Multiple of 8 clocks 01h = Value of Hexidecimal Data 

CSD Read clk cs (CMD) IN (DATA) OUT Read clk cs (CMD) IN (DATA) OUT 8 x 4 (64 clocks) 8x (multiple) 8 8 8 8x 8 8 x 16 (64 clocks) 8x2 (16 clocks) 8 NCR 49h (CMD9) FFh (CRC) CSD Data 00h FEh (Start Byte) CRC (2 Bytes) Don’t Care 8 = Number of clocks 8 = Number of “dummy” clocks 8 x = Multiples of 8 clocks 8x = Multiples of 8 “dummy” clocks 8 x 4 = Fixed Multiple of 8 clocks 01h = Value of Hexidecimal Data 8x4 (64 clocks) 8 8 8x (multiple) 8 8x (multiple) 8 8 8 NCR NAC 51h FFh (CRC) 00h 512 Bytes * Read Data * # Bytes set by CMD16 (Default 512) FEh (Start Byte) CRC (2 Bytes) Don’t Care Write clk cs (CMD) IN (DATA) OUT 8x4 (64 clocks) 8 8 8x (multiple) 8x 8 (multiple) 8 512 + 2 8x (multiple) 8 8 NCR NWR 58h FFh (CRC) FEh (Start Byte) 00h 512 Bytes Write Data CRC (2 Bytes) Don’t Care Busy xxx0 0101 b 

Set Block Length clk cs (CMD) IN (DATA) OUT 8 x 4 (64 clocks) 8x (multiple) 8 8 8 8 4 Bytes Block Length 50h FFh 00h 8 = Number of clocks 8 = Number of “dummy” clocks 8 x = Multiples of 8 clocks 8x = Multiples of 8 “dummy” clocks 8 x 4 = Fixed Multiple of 8 clocks 01h = Value of Hexidecimal Data