參數(shù)資料
型號(hào)： MC56U512HACA
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)： 36/66頁(yè)
文件大?。?/td> 1422K
代理商： MC56U512HACA
MultiMediaCard
TM
36
Figure 4-3 MultiMediaCard State Diagram
(Data Transfer Mode)
The command SELECT_DESELECT_CARD (CMD7) is used to select one card and place it in the
Transfer State. If a previously selected card is in the Transfer State its connection with the host is
released and it will move back to the Stand-by State. Only one card can be, at any time, in the Transfer
State. A selected card is responding the CMD7, the deselected one does not respond to this command.
When CMD7 is sent including the reserved relative card address “0x0000”, all cards transfer back to
Stand-by State. This command is used to identify new cards without resetting other already acquired
cards. Cards to which an RCA has already been assigned, do not respond to the identification
command flow in this state. All the data communication in the Data Transfer Mode is consequently a
point-to point communication between the host and the selected card (using addressed commands).
All addressed commands are acknowledged by a response on the CMD line. All read commands (data
is sent from the card via data lines) can be interrupted at any time, by a stop command. The data
transfer will terminate and the card will stop or start working on the next command. The DAT bus line
signal level is high when no data is transmitted. A transmitted data block consists of a start bit (LOW),
followed by a continuous data stream.
The data stream contains the net payload data (and error correction bits if an off-card ECC is used).
The data stream ends with an end bit (HIGH). The data transmission is synchronous to the clock signal.
The payload for block-oriented data transfer is preserved by a CRC check sum (refer to Chapter
“Cyclic Redundancy Check (CRC)”).
4.9.1 Block Read
The basic unit of data transfer is a block whose maximum size is defined in the CSD
(READ_BLK_LEN). A CRC is appended to the end of each block ensuring data transfer integrity.
READ_SINGLE_BLOCK (CMD17) starts a block read and after a complete transfer the card goes back
to Transfer State. READ_MULTIPLE_BLOCK (CMD18) starts a transfer of several consecutive blocks.
Two types of multiple block read transactions are defined (the host can use either one at any time):
* Open-ended Multiple block read : The number of blocks for the read multiple block operation is not
相關(guān)PDF資料
PDF描述
MC56U512NACA MultiMediaCard Specification
MC12U016HACA Shielded Paired Cable; Number of Conductors:2; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Shielding Material:Aluminum Foil/Polyester Tape; Number of Pairs:1 RoHS Compliant: Yes
MC12U016NACA Shielded Paired Cable; Number of Conductors:2; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:1; Leaded Process Compatible:Yes RoHS Compliant: Yes
MC12U032HACA CABLE, 9505, 5PAIR, 30.5M; Cores, No. of:10; Conductor make-up:7/32AWG; Area, conductor CSA:0.2mm2; Diameter, External:7.34mm; Material, secondary insulation:PVC; Length, Reel (Imperial):100ft; Colour, secondary insulation:Chrome; RoHS Compliant: Yes
MC12U032NACA Shielded Paired Cable; Number of Conductors:10; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:5; Impedance:75ohm; Leaded Process Compatible:Yes; Voltage Nom.:300V RoHS Compliant: Yes
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC5707B 制造商:Panasonic Industrial Company 功能描述:IC
MC570F/R 制造商:Rochester Electronics LLC 功能描述: 制造商:Motorola Inc 功能描述:
MC5728V_1100932 制造商:Sierra Wireless 功能描述:3G MINI CARD
MC5728V_1100953 制造商:Sierra Wireless 功能描述:3G MINI CARD
MC5728V_1101017 制造商:Sierra Wireless 功能描述:3G MINI CARD
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*