SDMJ-32 SanDisk, SDMJ-32 Datasheet - Page 33

• Manufacturer Part Number: SDMJ-32
• Manufacturer: SanDisk
• Type: MultiMedia Cardr

Specifications of SDMJ-32

• Density: 32MByte
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature (min): -25C
• Operating Temperature (max): 85C
• Package Type: MMC
• Mounting: Socket
• Pin Count: 7
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Programmable: Yes
• Lead Free Status / RoHS Status: Compliant

Revision 1.3
© 2005 SanDisk Corporation
3.5.4
Status Register
•
•
Table 3-26
•
Table 3-27
•
The MMC/RS-MMC Status Register structure is defined in Table 3-28. The Type and
Clear Condition fields in the table are coded as follows:
Type:
•
•
•
•
Clear Condition:
•
•
•
FILE_FORMAT_GRP
CONTENT_PROT_APP—indicates whether the content protection application is
supported. MultiMediaCards that implement the content protection application will
have this bit set to 1.
FILE_FORMAT—indicates the file format on the card. This field is read-only for
ROM. The formats are defined in Table 3-26.
ECC—defines the ECC code that was used for storing data on the card. This field is
used to decode user data by the host (or application). Table 3-27 defines the field
format.
CRC—carries the checksum for the CSD contents. The host must recalculate the
checksum for any CSD modification. The default corresponds to the initial CSD
contents.
E—Error bit
S—Status bit
R—Detected and set for the actual command response
X—Detected and set during command execution. The host must poll the card by
sending status command in order to read these bits.
A—According to the card current state
B—Always related to the previous command. Reception of a valid command will clear
it (with a delay of one command)
C—Clear by read.
ECC
2 - 3
0
0
0
0
1
0
1
File Format
ECC Type
FILE_FORMAT
0, 1, 2, 3
BCH (542,512)
none (default)
ECC Type
Reserved
0
1
2
3
3-18
Hard disk-like file system with partition table.
DOS FAT (floppy-like) w/boot sector only (no partition
table).
Universal file format.
Others/unknown.
Reserved.
MultiMediaCard and RS-MultiMediaCard Product Manual
none
3
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Max. Number of Correctable Bits per Block
Chapter 3 –Interface Description
Type
07/15/05