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參數(shù)資料

型號(hào)：	MC28U256HACA-0QC00
廠商：	SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述：	MultiMediaCard Specification
中文描述：	多媒體卡規(guī)格
文件頁(yè)數(shù)：	46/66頁(yè)
文件大小：	1422K
代理商：	MC28U256HACA-0QC00

MultiMediaCard

Tming CMD

End to CMD

n+1

Start

(All Modes)

In the case the CMDn command was a last identification command (no more response sent by a card),

then the next CMDn+1 command is allowed to follow after at least Ncc+136(the length of the R2

response) clock periods.

Data Access timing

Data transmission starts with the access time delay tAC (which corresponds to NAC), beginning from the

end bit of the data address command. The data transfer stops automatically in case of a data block

transfer or by a transfer stop command.

Data Read Timing

(Data Transfer Mode)

Data transfer stop command timing

The card data transmission can be stopped using the stop command. The data transmission stops

immediately with the end bit of the stop command.

Timing of Stop Command

(CMD12,Data Transfer Mode)

Single or multiple block write

The host selects one card for data write operation by CMD7. The host sets the valid block length for

block oriented data transfer by CMD16. The host transfers the data with CMD24. The address of the

data block is determined by the argument of this command. This command is responded by the card on

the CMD line as usual. The data transfer from the host starts NWR clock cycles after the card response

was received. The write data have CRC check bits to allow the card to check the transferred data for

transmission errors. The card sends the CRC check information as a CRC status to the host (on the data

line). The CRC status contains the information if the write data transfer was non-erroneous (the CRC

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相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
MC28U256HACB-0QC00	制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification
MC28U256HACC-0QC00	制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification
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MC28U256HAFC-0QC00	制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification

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