參數(shù)資料
型號(hào)： HB28L064MM3
廠商： Renesas Technology Corp.
英文描述： MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
中文描述： 多媒體32 MByte/64 MByte/128 MByte/256 MByte/512字節(jié)
文件頁(yè)數(shù)： 60/91頁(yè)
文件大?。?/td> 526K
代理商： HB28L064MM3
HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
Rev.0.02, Sep.15.2004, page 60 of 89
Error Conditions
Unlike the MultiMediaCard protocol, in the SPI mode the card will always respond to a command. The
response indicates acceptance or rejection of the command. A command may be rejected if it is not
supported (illegal opcode), if the CRC check failed, if it contained an illegal operand, or if it was out of
sequence during an erase sequence.
Memory Array Partitioning
Same as for MultiMediaCard mode.
Card Lock/Unlock
Usage of card lock and unlock commands in SPI mode is identical to MultiMediaCard mode. In both cases
the command response is of type R1b. After the busy signal clears, the host should obtain the result of the
operation by issuing a GET_STATUS command. Please refer to Chapter
“
Card lock/unlock operation
”
for
details.
Commands
All the MultiMediaCard commands are 6 bytes long. The command transmission always starts with the
left bit of the bitstring corresponding to the command codeword. All commands are protected by a CRC7.
The commands and arguments are listed in Table:
Bit position
[47]
[46]
[45:40]
[39:8]
[7:1]
[0]
Width (bits)
1
1
6
×
32
×
7
×
CRC7
1
Value
‘
0
’
‘
1
’
‘
1
’
Description
start bit
transmission bit command index argument
end bit
The following table provides a detailed description of the SPI bus commands. The responses are defined in
Chapter
“
Responses
”
. The Table
“
Commands and Arguments
”
lists all MultiMediaCard commands. A
“
yes
”
in the SPI mode colon indicates that the command is supported in SPI mode. With these restrictions,
the command class description in the CSD is still valid. If a command does not require an argument, the
value of this field should be set to zero. The reserved commands are reserved in MultiMediaCard mode as
well. The binary code of a command is defined by the mnemonic symbol. As an example, the content of
the command index field is (binary)
‘
000000
’
for CMD0 and
‘
100111
’
for CMD39.
相關(guān)PDF資料
PDF描述
HB28J512MM3 MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
HB3104AD 128Kx8 EEPROM
HB3104AL 128Kx8 EEPROM
HI3104AL 128Kx8 EEPROM
HI3104AP 128Kx8 EEPROM
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