- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382300 > MC1GU064HACA (SAMSUNG SEMICONDUCTOR CO. LTD.) MultiMediaCard Specification PDF資料下載
參數(shù)資料
| 型號(hào)： | MC1GU064HACA |
| 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)： | 10/66頁(yè) |
| 文件大小： | 1422K |
| 代理商： | MC1GU064HACA |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)當(dāng)前第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)
MultiMediaCard
TM
10
2.6.7 Data Protection in the Flash Card
Every sector is protected with an Error Correction Code (ECC). The ECC is generated (in the memory
card) when the sectors are written and validated when the data is read. If defects are found, the data is
corrected prior to transmission to the host.
The MultiMediaCard can be considered error free and no additional data protection is needed.
However, if an application uses additional, external, ECC protection, the data organization is defined in
the user writeable section of the CSD register
2.6.8 Erase
The smallest erasable unit in the MultiMediaCard is a erase group. In order to speed up the erase
procedure, multiple erase groups can be erased in the same time. The erase operation is divided into
two stages.
Tagging - Selecting the Sectors for Erasing
To facilitate selection, a first command with the starting address is followed by a second command with
the final address, and all erase groups within this range will be selected for erase.
Erasing - Starting the Erase Process
Tagging can address erase groups. An arbitrary selection of erase groups may be erased at one time.
Tagging and erasing must follow a strict command sequence (refer to the MultiMediaCard standard
specification for details).
2.6.9 Write Protection
The MultiMediaCard erase groups are grouped into write protection groups. Commands are provided
for limiting and enabling write and erase privileges for each group individually. The current write protect
map can be read using SEND_WRITE_PROT command.
In addition two, permanent and temporary, card levels write protection options are available.
Both can be set using the PROGRAM_CSD command (see below). The permanent write protect bit,
once set, cannot be cleared.
The One Time Programmable (OTP) characteristic of the permanent write protect bit is implemented in
the MultiMediaCard controller firmware and not with a physical OTP cell.
2.6.10 Copy Bit
The content of an MultiMediaCard can be marked as an original or a copy using the copy bit in the
CSD register. Once the Copy bit is set (marked as a copy) it cannot be cleared.
The Copy bit of the MultiMediaCard is programmed (during test and formatting on the manufacturing
floor) as a copy. The MultiMediaCard can be purchased with the copy bit set (copy) or cleared,
indicating the card is a master.
The One Time Programmable (OTP) characteristic of the Copy bit is implemented in the
MultiMediaCard controller firmware and not with a physical OTP cell.
2.6.11 The CSD Register
All the configuration information of the MultiMediaCard is stored in the CSD register. The MSB bytes of
the register contain manufacturer data and the two least significant bytes contains the host controlled
data - the card Copy and write protection and the user ECC register.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC1GU032NACA | MultiMediaCard Specification |
| MC1GH128DACA-2SA00 | SAMSUNG MultiMediaCard |
| MC1GH128NACA-2SA00 | SAMSUNG MultiMediaCard |
| MC1GH256DACA-2SA00 | SAMSUNG MultiMediaCard |
| MC2GH01GDMCA-2SA00 | SAMSUNG MultiMediaCard |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC1GU064HACA-0QC00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
| MC1GU064HACB-0QC00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
| MC1GU064HACC-0QC00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
| MC1GU064HAFA-0QC00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
| MC1GU064HAFB-0QC00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。