HB28K032MM3 Datasheet, PDF (63/91 Pages) Renesas Technology Corp – MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte

HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
CMD index SPI mode Argument
Resp Abbreviation
Command description
CMD43... Reserved
CMD54
CMD55 (Yes)
[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 Renesas MultiMediaCards
do not support this command.
CMD56 (Yes)
[31:1] stuff bits
[0:0] RD/WR*⁶
R1b GEN_CND
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_GLOCK_LEN command.
These Renesas MultiMediaCards
do not support this command.
CMD57 Reserved
CMD58 Yes
None
R3 READ_OCR
Reads the OCR register of a card.
CMD59 Yes
[31:1] stuff bits R1
[0:0] CRC option
CRC_ON_OFF
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
CMD60 No
Notes: 1. The default block length is as specified in the CSD. These Renesas MultiMediaCards do not
support partial block write, so the write block size defined by WRITE_BLK_LEN is permanently
assigned to the value 512 bytes.
2. The data transferred must not cross a physical block boundary unless READ_BLK_MISALIGN is
set in the CSD. These Renesas MultiMediaCards do not support read block operations with
boundary crossing (READ_BLK_MISALIGN = ‘0’), so the data transferred must not cross a
physical block boundary.
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
is set in the CSD. These Renesas MultiMediaCards do not support write block operations with
boundary crossing (WRITE_BLK_MISALIGN = ‘0’), so the data transferred must not cross a
physical block boundary.
5. 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.
6. ‘1’ the host gets a block of data from the card.
‘0’ the host sends block of data to the card.
Rev.0.02, Sep.15.2004, page 63 of 89