Delta AH02HC-5A, Руководство по оборудованию

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A H 5 0 0 H a r d w a r e M a n u a l
6.1 Overview of Memory Cards
The AH500 series CPU modules support standard SD cards. Users can purchase products which
meet specifications. The specifications for the SD cards supported by the AH500 series CPU
modules, and the usage of the SD cards are described in this chapter.
6.1.1 Appearances of Memory Cards
SD cards are classified into three types according to size. They are SD cards, miniSD cards, and
microSD cards. The AH500 series CPU modules support standard-sized SD cards.
SD
6.1.2 Specifications for Memory Cards
There are several specifications for SD cards on the market. SD cards not only can be classified
according to size, but also can be classified into three types according to capacity. These types are
SD cards, SDHC cards, and SDXC cards. The AH500 series CPU modules presently only support
basic SD specifications. The following is the table of SD card families. The SD column indicates the
specifications supported by the AH500 series CPU modules. Be sure to purchase products which
meet the specifications.
z The SD card families
Type SD SDHC SDXC
Capacity 2 GB Max. 4 GB~32 GB 32 GB~2 TB
File
system
FAT/FAT32 FAT32 exFAT
Size SD SDHC MiniSDHC MicroSDHC SDXC MicroSDXC
Speed
class
rating
N/A
Class 2 (Min. 2 MB/sec.)
Class 4 (Min. 4 MB/sec.)
Class 6 (Min. 6 MB/sec.)
Class 10 (Min. 10 MB/sec.)
Class 2 (Min. 2 MB/sec.)
Class 4 (Min. 4 MB/sec.)
Class 6 (Min. 6 MB/sec.)
Class 10 (Min. 10 MB/sec.)
* MMC cards are similar to SD cards in appearance. Users have to make sure that they purchase
products which meet the specifications.
6.2 Installing and Removing a Memory Card
6.2.1 Formatting of a Memory Card and a Write Protect Tab
A memory card that users use for the first time may not be formatted. A memory card which is not
formatted can not be used in an AH500 series CPU module. Therefore, users need to format the
memory card. The file system with which the memory card is formatted is FAT.
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MiniSD
MicroSD
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