源于官方言文档，第9页：
1.3. System Features
The SD Card provides the following features:
• Up to 2-GB of data storage.
• SD Card protocol compatible.
• Supports SPI Mode.
• Targeted for portable and stationary applications for secured (copyrights protected) and non-secured
data storage.
• Voltage range:
− Basic communication (CMD0, CMD15, CMD55, ACMD41): 2.0-3.6V.
− Other commands and memory access: 2.7-3.6V.
• Variable clock rate 0-25 MHZ.
• Up to 25 MB/sec data transfer rate (using 4 parallel data lines).
• Maximum data rate with up to 10 cards.
• Correction of memory field errors.
• Copyrights Protection Mechanism—Complies with highest security of SDMI standard.
Introduction to the SD Card
SanDisk Secure Digital (SD) Card Product Manual, Rev. 2.2 © 2004 SANDISK CORPORATION 1-3
• Password Protected of Cards (not on all models).
• Write Protect feature using mechanical switch.
• Built-in write protection features (permanent and temporary).
• Card Detection (Insertion/Removal).
• Application-specific commands.
• Comfortable erase mechanism. |
楼主
标题置顶
标题高亮
