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  • 參數(shù)資料
    型號: HB28J128MM3
    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)
    文件頁數(shù): 60/91頁
    文件大?。?/td> 526K
    代理商: HB28J128MM3
    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
    HB28J128RM3 MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
    HB28J256MM3 MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
    HB28J256RM3 MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
    HB28L064RM3 MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
    HB28K032MM3 MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
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    HB2A102K-S265B 制造商:Hitano Enterprise Corp 功能描述:Bulk
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