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AT32F413
Series Reference Manual
2022.06.27
Page 344
Rev 2.00
Table 23-7
Erase commands
CMD index Type
Parameter
Response
format
Abbreviation
Description
CMD32
…
CMD34
Reserved. These command indexes canot be used in order to maintain backward compatibility with older
versions of the MultiMedia card.
CMD35
ac
[31: 0]=data address R1
ERASE_GROUP
_START
Sets the address of the first erase group
within a range to be selecte for erase
CMD36
ac
[31: 0]=data address R1
ERASE_GROUP
_END
Sets the address of the last erase group
within a continuous range to be selected
for erase
CMD37
Reserved. These command indexes canot be used in order to maintain backward compatibility with older
versions of the MultiMedia card.
CMD38
ac
[31: 0]=stuff bits
R1b
ERASE
Erase all previously selected data blocks
Table 23-8
I/O mode commands
CMD index Type
Parameter
Response
format
Abbreviation
Description
CMD39
ac
[31: 16]=RCA
[15]=register
write
flag
[14:
8]=register
address
[7: 0]=register data
R4
FAST_IO
Used to write and read 8-bit (register)
data fields. The command specifies a
card and a register and provides the data
for writing if the write flag is set. The R4
response contains data read from the
specified
register.
This
command
accesses application-specific registers
that are not defined in the MultiMedia
card standard.
CMD40
bcr
[31: 0]=stuff bits
R5
GO_IRQ_STATE Place the system in the interrupt mode
Table 23-9
Card lock commands
CMD index Type
Parameter
Response
format
Abbreviation
Description
CMD42
adtc
[31: 0]=stuff bits
R1
LOCK_
UNLOCK
Sets/clears
the
password
or
locks/unlocks the card. The size of the
data block is set by CMD16.