- 您現在的位置：買賣IC網 > PDF目錄382301 > MC4GH02GNMCA-2SA00 (SAMSUNG SEMICONDUCTOR CO. LTD.) SAMSUNG MultiMediaCard PDF資料下載
參數資料
| 型號： | MC4GH02GNMCA-2SA00 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | SAMSUNG MultiMediaCard |
| 中文描述： | 三星多媒體 |
| 文件頁數： | 82/102頁 |
| 文件大小： | 1384K |
| 代理商： | MC4GH02GNMCA-2SA00 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁當前第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁
MultiMediaCard
TM
82
Sep.22.2005
Revision 0.3
7.6 Bus Transfer Protection
Every MultiMediaCard token transferred on the bus is protected by CRC bits. In SPI mode, the MultiMediaCard offers a
non-protected mode which enables systems built with reliable data links to exclude the hardware or firmware required for
implementing the CRC generation and verification functions. In the non-protected mode, the CRC bits of the command,
response and data tokens are still required in the tokens. However, they are defined as ‘don’t care’ for the transmitter and
ignored by the receiver.
The SPI interface is initialized in the non-protected mode. However, the RESET command (CMD0), which is used to
switch the card to SPI mode, is received by the card while in MultiMediaCard mode and, therefore, must have a valid CRC
field.
Since CMD0 has no arguments, the content of all the fields, including the CRC field, are constants and need not be calcu-
lated in run time. A valid reset command is:
0x40, 0x0, 0x0, 0x0, 0x0, 0x95
The host can turn the CRC option on and off using the CRC_ON_OFF command (CMD59).
7.7 Data Read
The SPI mode supports single and multiple block read operations. The main difference between SPI and MultiMediaCard
modes is that the data and the response are both transmitted to the host on the DataOut signal (refer to Figure 7-2 and
Figure 7-3). Therefore the card response to the STOP_COMMAND may cut-short and replace the last data block.
Figure 7-2 : SPI Single Block Read Operation
Figure 7-3 : SPI Multiple Block Read Operation
command
DataIn
DataOut
from
host
to card
data from card
to host
from
card
to host
data block
response
command
Next
Command
CRC
command
DataIn
DataOut
from
host
to card
data from card
to host
from
card
to host
data block
response
command
Stop
Command
CRC
data block CRC
response
data B.
相關PDF資料 |
PDF描述 |
|---|---|
| MC206 | THIN SMD LOW/MEDIUM-FREQUENCY CRYSTAL UNIT |
| MC2300 | Navigator Motion Processor |
| MC26LS30 | Dual Differential Quad Single-Ended (EIA-423-A) Line Drivers |
| MC26LS30D | CABLE GLAND, PG29 |
| MC26LS30DR2 | Dual Differential Quad Single-Ended (EIA-423-A) Line Drivers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC4M | 制造商:G & J HALL 功能描述:STEP DRILL MULTICUT 4-12MM X 2MM 制造商:G & J HALL 功能描述:STEP DRILL, MULTICUT, 4-12MM X 2MM |
| MC-4-MALE | 制造商:Multi-Contact USA 功能描述: |
| MC4MANUAL | 制造商:Omron Corporation 功能描述: |
| MC-4R128CEE6B | 制造商:NEC 制造商全稱:NEC 功能描述:Direct Rambus DRAM RIMM Module 128M-BYTE 64M-WORD x 16-BIT |
| MC-4R128CEE6B-653 | 制造商:NEC 制造商全稱:NEC 功能描述:Direct Rambus DRAM RIMM Module 128M-BYTE 64M-WORD x 16-BIT |
發布緊急采購，3分鐘左右您將得到回復。