hb288064mm1 Renesas Electronics Corporation., hb288064mm1 Datasheet - Page 57

• Manufacturer Part Number: hb288064mm1
• Description: Multimediacard 64 Mbyte
• Manufacturer: Renesas Electronics Corporation.

CMD index SPI mode Argument
CMD41
CMD42
CMD43...
CMD57
CMD58
CMD59
CMD60
Notes: 1. The default block length is as specified in the CSD.
2. The data transferred must not cross a physical block boundary unless READ_BLK_MISALIGN is
3. R1b: R1 response with an optional trailing busy signal.
4. The data transferred must not cross a physical block boundary unless WRITE_BLK_MISALIGN
5. 32 write protection bits (representing 32 write protect groups starting at the specified address)
set in the CSD.
is set in the CSD.
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.
reserved
Yes
reserved
Yes
Yes
No
[31:0] stuff bits
None
[31:1] stuff bits
[0:0] CRC option
Resp Abbreviation
R1b
R3
R1
LOCK/UNLOCK
READ_OCR
CRC_ON_OFF
Command description
Used to set/reset the password or
lock/unlock the card. The structure
of the data block is described in
chapter “Card lock/unlock
operation”. The size of the Data
Block is defined by the
SET_BLOCK_LEN command.
Reads the OCR register of a card.
Turns the CRC option on or off. A
‘1’ in the CRC option bit will turn the
option on, a ‘0’ will turn it off
HB288064MM1
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