数据搜索系统,热门电子元器件搜索
  Chinese▼

Delete All
ON OFF
ALLDATASHEETCN.COM

X  

预览 PDF Download HTML

MC1GU064HCYB-0QC00 Datasheet(数据表) 41 Page - Samsung semiconductor

部件型号  MC1GU064HCYB-0QC00
说明  MultiMediaCard Specification
下载  66 Pages
Scroll/Zoom Zoom In 100% Zoom Out
制造商  SAMSUNG [Samsung semiconductor]
网页  http://www.samsung.com/Products/Semiconductor
标志 

MC1GU064HCYB-0QC00 Datasheet(HTML) 41 Page - Samsung semiconductor

Zoom Inzoom in Zoom Outzoom out
 41 page
background image
MultiMediaCard
TM
41
the status register.
* Unlocking the card:
- Select a card (CMD7), if not previously selected already.
- Define the block length (CMD16), given by the 8 bit card lock/unlock mode, the 8 bit password
size (in bytes), and the number of bytes of the currently used password.
- Send the card lock/unlock command with the appropriate data block size on the data line
including 16 bit CRC. The data block shall indicate the mode UNLOCK, the length (PWD_LEN)
and the password (PWD) itself.
If the PWD content equals to the sent password then the card will be unlocked and the card-locked
status bit will be cleared in the status register. If the password is not correct then the
LOCK_UNLOCK_FAILED error bit will be set in the status register. Note that the unlocking is done
only for the current power session. As long as the PWD is not cleared the card will be locked
automatically on the next power up. The only way to unlock the card is by clearing the password. An
attempt to unlock an unlocked card will fail and LOCK_UNLOCK_FAILED error bit will be set in the
status register.
* Forcing Erase:
In case that the user forgot the password (the PWD content) it is possible to erase all the card data
content along with the PWD content. This operation is called Forced Erase.
- Select a card (CMD7), if not previously selected already.
- Define the block length (CMD16) to 1 byte (8bit card lock/unlock command). Send the card
lock/unlock command with the appropriate data block of one byte on the data line including 16 bit
CRC. The data block shall indicate the mode ERASE (the ERASE bit shall be the only bit set).
If the ERASE bit is not the only bit in the data field then the LOCK_UNLOCK_FAILED error bit will be
set in the status register and the erase request is rejected. If the command was accepted then ALL
THE CARD CONTENT WILL BE ERASED including the PWD and PWD_LEN register content and
the locked card will get unlocked. An attempt to force erase on an unlocked card will fail and
LOCK_UNLOCK_FAILED error bit will be set in the status register.
* State transition summary
Table “Card State Transition Table” defines the card state transitions as a function of received
command
4.9.6 Responses
All responses are sent via command line (CMD), all data starts with the MSB.
Table 4-10 Format R1(Response Command)
0
0
bit5 … bit0
Bit31 … bit0
Bit6 … bit0
1
start bit
card
command
status
CRC
end bit
The contents of the status field are described in Chapter “Status
Format R1b (response command with busy signal):




HTML 页

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66 


数据表 下载



相关电子零件

部件型号部件说明Html View制造商
MC56U032DCCADual Voltage MultiMediaCard Specification 1 2 3 4 5 MoreSamsung semiconductor
DMF5010NB-FWLCD Module Specification 1 2 3 4 5 MoreOPTREX CORPORATION
GL5ZJ44DEVICE SPECIFICATION FOR Light Emitting Diode 1 2 3 4 5 MoreSharp Electrionic Components
LQ084V2DS01DEVICE SPECIFICATION FOR TFT-LCD Module 1 2 3 4 5 MoreSharp Electrionic Components
PC357NTDEVICE SPECIFICATION FOR PHOTOCOUPLER 1 2 3 4 5 MoreSharp Electrionic Components
1MBI150SH-140Tentative target specification 1 2 Fuji Electric
K4S643232H64Mb H-die x32 SDRAM Specification 1 2 3 4 5 MoreSamsung semiconductor
PH967C6SPECIFICATION 1 2 3 4 5 MoreFuji Electric
DMC16207N-BLCD Module Specification 1 2 3 4 5 MoreOPTREX CORPORATION
K4H1G0438M1Gb M-die DDR SDRAM Specification 1 2 3 4 5 MoreSamsung semiconductor

链接网址


Privacy Policy
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ]  

关于 Alldatasheet    |   广告服务   |   联系我们   |   隐私政策   |   书签   |   链接交换   |   制造商名单
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl