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MC1DU128NAFB-0QC00 Arkusz danych(PDF) 33 Page - Samsung semiconductor |
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MC1DU128NAFB-0QC00 Arkusz danych(HTML) 33 Page - Samsung semiconductor |
33 / 66 page MultiMediaCard TM 33 data (WP_GRP_SIZE). CMD29 ac [31:0] data address R1b CLR_WRITE_PROT If the card provides write protection features, this command clears the write protection bit of the addressed group. CMD30 adtc [31:0] write protect data address R1 (7) SEND_WRITE_PR OT If the card provides write protection features, this command asks the card to send the status of the write protection bits. *7 CMD31 Reversed CMD35 ac [31:0] data address R1 TAG_ERASE_GRO UP_START Sets the address of the first erase group within a range to be selected for erase CMD36 ac [31:0] data address R1 TAG_ERASE_GRO UP_END Sets the address of the last erase group within a continuous range to be selected for erase. CMD38 ac [31:0] stuff bits R1b ERASE Erases all previously selected sectors CMD42 adtc [31:0] stuff bits R1b LOCK_UNLOCK Used to set/reset the password or lock/unlock the card. The size of the data block is set by the SET_BLOCK_LEN command. CMD55 ac [31:16] RCA [15:0] stuff bits R1 APP_CMD Indicates to the card that the next command is an application specific command rather than a standard command These Samsung MultiMediaCard do not support this command CMD56 adtc [31:1] stuff bits. [0]: RD/WR R1b GEN_CMD Used either to transfer a data block to the card or to get a data block from the card for general purpose / application specific commands. The size of the data block shall be set by the SET_BLOCK_LEN command. These Samsung MultiMediaCard do not support this command Note : 1. CID register consists of 128 bits (starting with MSB, it is preceded by an additional start bit, ends with an end bit) 2. CSD register consists of 128 bits (starting with MSB, it is preceded by an additional start bit, ends with an end bit) 3. This command is indicating the busy status of the MultiMediaCard via the data channel. 4. The default block length is as specified in the CSD. 5. The data transferred must not cross a physical block boundary unless RD_BLK_MISALIGN is set in the CSD. 6. The data transferred must not cross a physical block boundary unless WRITE_BLK_MISALIGN is set in the CSD. 7. 32 write protection bits (representing 32 write protect groups starting at the specified address followed by 16 CRC bits are transferred in a payload format via the data line. The last (least significant) bit of the protection bits corresponds to the first addressed group. If the addresses of the last groups are outside the valid range, then the corresponding write protection bits shall be set to zero. 4.7 Read, Write and Erase Time-out Conditions The times after which a time-out condition for read/write/erase operations occurs are (card indepen- dent) 10 times longer than the access/program times for these operations given below. A card shall complete the command within this time period, or give up and return an error message. If the host does not get a response within the defined time-out it should assume the card is not going to respond anymore and try to recover (e.g. reset the card, power cycle, reject, etc.). The typical access and program times are defined as follows |
Podobny numer części - MC1DU128NAFB-0QC00 |
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Podobny opis - MC1DU128NAFB-0QC00 |
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