參數(shù)資料
型號(hào)： MC12U064DACA-2QC00
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： Dual Voltage MultiMediaCard Specification
中文描述： 雙電壓多媒體卡規(guī)格
文件頁數(shù)： 24/64頁
文件大?。?/td> 1385K
代理商： MC12U064DACA-2QC00
MultiMediaCard
TM
7
Reserved
Always ‘0’
These MultiMediaCards support a transfer rate between 0 and 20Mb/s. The parameter TRAN_SPEED is
0x2A.
CCC
The MultiMediaCard command set is divided into subsets (command classes). The card command class
register CCC defines which command classes are supported by this card. A set CCC bit means that the
corresponding command class is supported. For command class definition refer to Table “ Command
Classes”.
Supported Card Command Classes
CCC bit
0
1
…..
11
These MultiMediaCards support the command classes 0,2,4,5,6 and 7. The parameter CCC is
permanently assigned to the value 0x0F5.
READ_BLK_LEN
The data block length is computed as 2^
READ_BLK_LEN
.
Data Block Length
READ_BLK_LEN
0
1
…..
11
12-15
The value of the parameter READ_BLK_LEN is 0x09 (512 bytes).
READ_BLK_PARTIAL
READ_BLK_PARTIAL defines whether partial block sizes can be used in block read command.
READ_BLK_PARTIAL = 0 means that only the block size defined by READ_BLOCK_LEN can be used
for block-orinted data transfer. READ_BLK_PARTIAL = 1 means that smaller blocks can be used as well.
The minimum block size will be equal to minimum addressable unit (one byte).
WRITE_BLK_MISALIGN
Defines if the data block to be written by one command can be spread over more than one physical
blocks of the memory device. The size of the memory block is defined in WRITE_BLK_LEN.
WRITE_BLK_MISALIGN is permanently assigned to the value “0”, signaling that crossing physical block
boundaries is not allowed.
Supported card command classes
Class 0
Class 1
…..
Class 11
Block length
2
0
= 1 byte
2
1
= 2 bytes
…..
2
11
= 2,048 bytes
Reserved
24
相關(guān)PDF資料
PDF描述
MC12U128DACA-2QC00 Dual Voltage MultiMediaCard Specification
MC14024B 7 Stage Ripple Counter(7位二進(jìn)制計(jì)數(shù)器)
MC14029B Binary/Decade Up/Down Counter(二/十進(jìn)制 增/減計(jì)數(shù)器)
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MC1403 Low Voltage Reference(低電壓參考源)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC12U064HACA 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification
MC12U064HACA-0QC00 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification
MC12U064HACB-0QC00 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification
MC12U064HACC-0QC00 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification
MC12U064HAFA-0QC00 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification
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