- 您現在的位置：買賣IC網 > PDF目錄382300 > MC1GH128NACA-2SA00 (SAMSUNG SEMICONDUCTOR CO. LTD.) SAMSUNG MultiMediaCard PDF資料下載
參數資料
| 型號： | MC1GH128NACA-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： | 45/102頁 |
| 文件大小： | 1384K |
| 代理商： | MC1GH128NACA-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頁當前第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
45
Sep.22.2005
Revision 0.3
6.2.4 Bus Testing Procedure
By issuing commands CMD19 and CMD14 the host can detect the functional pins on the bus. In a first step, the host
sends CMD19 to the card, followed by a specific data pattern on each selected data lines. The data pattern to be sent per
data line is defined in the table below. As a second step, the host sends CMD14 to request the card to send back the
reversed data pattern. With the data pattern sent by the host and with the reversed pattern sent back by the card, the func-
tional pins on the bus can be detected.
The card ignores all but the two first bits of the data pattern. Therefore, the card buffer size is not limiting the maximum
length of the data pattern. The minimum length of the data pattern is two bytes, of which the first two bits of each data line
are sent back, by the card, reversed. The data pattern sent by the host may optionally include a CRC16 checksum, which
is ignored by the card.
The card detects the start bit on DAT0 and synchronizes accordingly the reading of all its data inputs.
The host ignores all but the two first bits of the reverse data pattern. The length of the reverse data pattern is eight bytes
and is always sent using all the card’s DAT lines (See Table through Table ). The reverse data pattern sent by the card
may optionally include a CRC16 checksum, which is ignored by the host.
The card has pull ups in all data inputs. In cases where the card is connected to only 1bit or only 4bit HS-MMC system, the
input value of the upper bits (e.g. DAT1-DAT7 or DAT4-DAT7) are detected as logical “1” by the card. .
Start Bit
Data Pattern
End bit
0
1 0 x x x x ... x x
1
Data
line
Data pattern sent by the host
Reversed pattern sent by the card
Notes
DAT0
0,10xxxxxxxxxx,[CRC16],1
0,01000000,[CRC16],1
Start bit defines beginning of pattern
DAT1
0,00000000,[CRC16],1
No data pattern sent
DAT2
0,00000000,[CRC16],1
No data pattern sent
DAT3
0,00000000,[CRC16],1
No data pattern sent
DAT4
0,00000000,[CRC16],1
No data pattern sent
DAT5
0,00000000,[CRC16],1
No data pattern sent
DAT6
0,00000000,[CRC16],1
No data pattern sent
DAT7
0,00000000,[CRC16],1
No data pattern sent
Table 6-3 : 1-bit Bus Testing Pattern
相關PDF資料 |
PDF描述 |
|---|---|
| MC1GH256DACA-2SA00 | SAMSUNG MultiMediaCard |
| MC2GH01GDMCA-2SA00 | SAMSUNG MultiMediaCard |
| MC2GH256NMCA-2SA00 | SAMSUNG MultiMediaCard |
| MC2GH512DMCA-2SA00 | SAMSUNG MultiMediaCard |
| MC2GH512NMCA-2SA00 | SAMSUNG MultiMediaCard |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC1GH256DACA-2SA00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:SAMSUNG MultiMediaCard |
| MC1GU016HACA | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
| MC1GU016HACA-0QC00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
| MC1GU016HACB-0QC00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
| MC1GU016HACC-0QC00 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MultiMediaCard Specification |
發布緊急采購，3分鐘左右您將得到回復。